Difference between wet sweeper and dry sweeper and drawing of sweeper First, what is a road sweeper Pure broom sweeper: Sweeper vehicle pure sweeping fan is not installed, which cleaning operation by the sweeping edge sweep roadside trash to the sweeper, then rolling by rolling or scavenging mechanism scavenging garbage butt + Sweep the trash. As early as in the early 1980s, China developed a pure sweeper vehicle and used it in the sanitation department of some large cities. Later, with the development of the suction sweeper, Wet sweeper: Wet sweeper adopts wet dust removal method, that is, the sweeper sweeps the water at the suction nozzle and the suction pipe in addition to the dust at the sweeping position during the sweeping operation. The purpose of spraying the dust at the sweeping point is to make the sweeping vehicle not dust when the sweeping operation is performed, and spray dust at the suction nozzle and the suction pipe so as to make the fine dust sucked through the suction nozzle in the water mist. The drawings of the road sweeper in this article are for reference only, the times are improving, and the structure is improving. Slurry pump refers to a device that converts electrical energy into kinetic energy and potential energy of the medium by means of centrifugal force (the rotation of the impeller of the pump) to increase the energy of the solid and liquid mixed medium. Mainly used in: mining, power plant, dredging, metallurgy, chemical industry, building materials and petroleum and other industries. Slurry Pump,Submersible Sludge Pump,Slurry Screw Pump,Slurry Pump Centrifugal Jiangsu Qiantu Trading Co., Ltd. , https://www.qtprimingpump.com
Equipped with garbage, dust collecting containers and cleaning systems, used for cleaning, collecting garbage and other contaminants in special structures.
Second, the classification of road sweeper
1. According to the way of walking, it can be divided into: push type, walk type, self type;
Hand-push sweeper: The hand-push sweeper is a small sweeper . During the cleaning operation, the operator pushes the sweeper vehicle forward behind the sweeper. Such slap cleaning bus width is generally 800 - Between 1200mm, and mostly in lOOOmm less and an average cleaning speed is generally 3 km / h, the maximum sweep speed is generally Skm / h. Due to the manual labor of the hand-push sweeper, the operator is only suitable for the sweeping of road leveling areas such as interiors and squares.
Walk-behind sweeper: Walk-behind sweeper is a hand-push sweeper that installs a travel drive so that the operator does not need to push the sweeper when cleaning. Just walk behind the sweeper Road car. Therefore, when the walk-in sweeper is operated, the operator's labor intensity is lower than that of the hand-push sweeper. The scope of application also extends to a slight slope on the basis of hand-guided sweepers.
Degree of outdoor pavement.
Self-propelled sweeper: The self-propelled sweeper has a complete set of travel drive and control system. The operator rides on the sweeper to control the sweeper. There are many specifications for self-propelled sweeping vehicles, sweeping widths from 1.2m to several meters, and a variety of structural types. However, self-propelled sweeping vehicles are composed of two parts: the chassis and the operating device. Most self-propelled sweepers have
There is a cab, only a small number of small self-propelled sweepers do not have a cab.
2. According to the sweeping operation mode, it can be divided into three categories: pure sweep sweeper, pure suction sweeper sweeper , suction sweeper sweeper sweeper;
Development, the pure sweeping sweeper vehicle is gradually replaced by the sweeper sweeper. The pure sweeper sweeper only sweeps (scatters) people's bins by mechanical sweeping, so no wet dusting or dry dusting is needed. In order to prevent the road sweeper from dusting during sweeping operations, spray sweepers are generally installed at the sweeping positions of the sweeper sweeper.
Suction sweeper: The sweeper is the most popular sweeper in the world. The suction sweeper is not only dry and wet, but also has a variety of structural types. Since the end of the 1980s, the Changsha Institute of Construction Machinery of the Ministry of Construction has developed China's first suction sweeper. The sweeper sweeper has developed rapidly in China. At present, most of the road sweepers produced and used in China belong to the suction sweeper.
The suction sweeper is not only equipped with a sweeping sweeper to increase sweeping width, but also has a fan. The sweeping device sweeps the trash on the side of the road to the suction nozzle, and then the fan sucks the garbage under the suction nozzle into the dust box through the air duct.
Pure suction sweeper: So far, there are few pure sweeper sweepers in road sweeping operations, but pure sweeper sweepers do exist as a type of sweeper.
3 , divided by dust, can be divided into dry, wet.
Dry sweeper: dry sweeper adopts dry dust removal method, that is, the sweeper does not spray water during the dust removal process. Therefore, the dry sweeper must be installed in the dustbin or the air duct. Device. When a dry sweeper sweeps a cleaning operation, the larger amount of garbage inhaled from the suction mouth will naturally fall due to a drastic decrease in the wind speed in the dust box when entering the waste bin.
The small, light-gravity dust that has been inhaled is trapped by the Filter as it passes through the filter with the airflow. Depending on the type of filter used in the sweeper, some dry sweepers can use water jet dust to counter sweep, while some dry sweepers cannot use water jet dust to prevent the filter from plugging.
Because the dry sweeper truck does not use water during dust removal, there is no phenomenon that the sweeping water is frozen because the ambient temperature is too low. Therefore, the dry sweeper truck is particularly suitable for use in water-scarce areas or areas with long cold periods.
Wet, agglomerate into larger volumes of particles for settling in the bin.
Since dust collected by a wet sweeper coalesces after being agglomerated by water jets and can be naturally settled in the waste bin without using other measures, its air duct structure is relatively simple and no dust filter is required.
Third, the development of China's road sweeper
In the 1960s , our country developed and produced the first generation of sweepers and sweeping sweepers. Since then, it has unveiled the prelude to the development of road sweepers in China. Due to poor sweeping results, labor intensity, and inconvenient operation, it was launched. It will be eliminated soon.
In the 1970s, domestic related scientific research institutions and manufacturers increased the research and development efforts of the sweepers, and the second-generation sweepers of our country were born. Beijing and Shanghai have developed large-, medium-, and small-size pure sweep sweepers, and the S31 large sweeper, S32 medium sweeper and S15 small sweeper have been put into use. The dry pure suction type sweeper developed by Tianjin was put into use in small quantities. The technical level of the second generation of sweepers has been greatly improved over the first generation. However, due to the problems of low sweeping efficiency ( sweeping degree ) and reliability of the dry pure suction dust removal system, the promotion and use of such sweeping machines has been greatly limited.
In the mid-1980s, according to the research tasks of the State Development Planning Commission and the Ministry of Construction, after years of research, the Changsha Construction Machinery Research Institute of the Ministry of Construction developed the first generation of wet sweeper combined sweeper vehicles in China —the SHZ20 sweeper. The car filled the gaps in the country and marked the birth of the third-generation road sweeper in China. The sweeper uses a combination of sweeper sweeping and vacuum pneumatic conveying to increase sweeping efficiency from 80% of the pure sweeper sweeper to about 95% of the sweeper sweeper. The principle and method of wet sweeping are used to solve the sweeping The secondary dust pollution of the sweeper and the separation of the dust and air from the dustbin. The application of these new technologies has greatly improved the performance and reliability of the domestic road sweeper. The technology was transferred to several manufacturers in Sichuan, Zhangzhou, Fujian and Guangdong. In the late 1980s , it began to enter the market.
In the 1990s, the country’s economic situation improved and the standard of living of the people continued to increase. Based on the improvement of the quality of life and the need to improve the investment environment, local governments at all levels have paid more and more attention to environmental sanitation work. The input of sanitation infrastructure has been continuously increased, and environmental sanitation work must gradually achieve mechanized operations. The market demand for road sweepers has been expanding, and the technical level of road sweepers has rapidly increased. In particular, in 1993 and 1994 , a number of economically developed areas began to purchase road sweepers in large quantities. In order to meet market demand, swept vehicles have been developed and produced in various regions. In a few years, sweepers have completed the conversion from single species to multiple varieties. Formed a combination of self-development and the introduction of foreign technology.
Fourth, the main domestic road sweeper manufacturers
Road sweeper manufacturers mainly include: Changsha Zoomlion, Fujian Longma Sanitation Equipment, Yantai Hyde, Hubei Aoli, etc.
Fifth, the purchase of sweeping vehicles
1. The elimination system of the road sweeper consists of main brush, side brush and dustbin. The side brush is required to receive dense high-grade material and is equipped with a spring. This can effectively withstand the blow and further cover the brush wheel. .
2. Suction system: It is necessary to equip a high-powered fan so that the gas can be completely sucked into the housing filter dust collector. Such a filter container constantly shakes and oscillates during events, making it impossible to create signs of obstruction, such as jamming.
3. Waste dumping system: dumping garbage from the road sweeping vehicle is accomplished through the control of the steering wheel. Before dumping, the lid of the rubbish bin is closed, the control rod pulls forward, lifts the bin upside down, and when the rubbish bin is down, the control rod pushes forward to the same position.
4. The power system of the garbage sweeper is divided into diesel / gasoline, liquid propane gas and battery. The drive system of the road sweeper is selected according to the nature of the site, the size of the area, the type of waste, the length of operation, etc., to meet the clean demand of different customers. The use of the diesel / gasoline drive model depends on the necessary clean environment and the type of waste. As a general rule, there is a large amount of waste, and a large area with low noise and environmental requirements is clean outdoors. Choose diesel / petrol type.
5 , eliminate the process necessary to sprinkle water to suppress dust, so, the size of the water tank directly determines the length of continuous operation time: the water tank is too large, in addition to occupying the entire vehicle space, the growth of the box layout is beautiful, but also relatively reduce the space for waste settlement, impact Settlement results and the amount of garbage network; the water tank is too small, the number of renewal in the middle of the road increases, and the efficiency of the sinking is low. The suction sweeping road sweeper includes a water tank, a drain valve, a water injection port, a water pump, a spray head, and a solenoid valve. While increasing manufacturing costs, it also increased the rate of impediment.
Sixth, sweeping vehicle maintenance
1. In order to avoid mistakes in operation, the sweeper control valve is mainly divided into a main valve and a secondary valve. Then where are the two main types of valves, where the power of the main valve comes from the chassis of the sweeper vehicle and the power of the secondary valve comes from the secondary engine of the dedicated functional part. Common road sweeper deputy engines include Chaochai, Jiangling and Cummins. The main valve manages the tilting of the shell behind the chassis and the hydraulic switch on the rear door of the compartment. The secondary valve manages the operation of the four floor brushes (which can individually control one side or all of the work) and the suction cup of the sweeper.
2. The secondary engine of the road sweeper is different because of the power of the selected engine brand, but the general speed is around 1500 to 1800 rpm.
3 , according to the needs of the job can generally choose whether you need to bring the function of water spray dust, conventional configuration generally comes with the post-spray, at the same time need to pay attention to the clean water tank is enough water, the general clean water tank capacity is different, there may be a gap in working time.
4. The pressure adjustment of the electromagnetic multi-way valve of the road sweeper is generally on the overflow valve. Users can adjust the pressure appropriately to change the speed of the sweep brush.
5. In addition, the sweeping vehicle can select whether the left and right brushes of the vehicle work at the same time according to the condition of the road surface. For example, if the sweeping corner is only used to open the corner, the brush is turned to work.
6. There may be fine dust deposits in the dust bins of the sweeper trucks. Manual cleaning is required when cleaning the waste bins.
7. The distance between the suction cup of the Dongfeng sweeping vehicle and the ground should be adjusted frequently according to the road conditions.
8. The road sweeper dust suction pipe may often have dust and mud sticking and need to be cleaned regularly to achieve better results.
9. The electrical parts in the control box need to be replaced when they need to be replaced in order to use more stable.
10. Sanitation workers should regularly check whether the functional parts are normal.
11 , in order to avoid the foreign matter in the hydraulic oil will affect the normal operation of the electromagnetic control valve, sanitation workers should regularly check the hydraulic oil is normal.
12. Check whether the limit device of clutch electric push rod of the secondary engine of the vehicle is normal.
13. When the control button of sweeping cart is changed, the time interval should be 5 seconds
14. When a hydraulic part of a road sweeper is not working properly, check the circuit first and then check the circuit.
( 1 ) The possible causes of abnormal circuit parts are: disconnection of insurance, loose connection of circuit connection, breakage of line
( 2 ) The possible reasons for the abnormality of the oil path are: failure of the oil pump, breakage of the oil pipe, or oil leakage from the connection of the oil circuit, and malfunction of the solenoid valve.