Raised dust treatment system of road sweeper

Abstract

The utility model provides a raised dust treatment system of a road sweeper. The raised dust treatment system is characterized in that corresponding raised dust suction hoods are respectively arranged above the periphery of each sweeping part of the road sweeper; a raised dust processor and a clear water tank are arranged above the middle part of the frame, and a sewage tank is arranged below the rear part of the frame; the interior of the upper-layer cavity of the raised dust processor is sequentially divided into an air inlet chamber, a dust removal chamber and an air outlet chamber from right to left through two waterproof and breathable shutters. A primary water pump, a central pipeline water purifier, a water storage tank and a secondary water pump are arranged on the lower layer of the raised dust processor; dust blocking rubber plates are installed between the front wheels and the rear wheels on the left side and the right side of the vehicle bottom. The flying dust treatment system can basically and completely absorb flying dust raised during road sweeping, the purification treatment effect on spraying dust removal sewage is good, water pumped back for repeated use is not prone to causing blockage of a spraying dust removal nozzle of the dust removal chamber, in addition, the water storage tank is provided with an automatic water supplementing design, and circulating water can be automatically supplemented in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the part of road sweeper, concretely is a road sweeper's dust handling system belongs to sanitation mechanical equipment technical field. BACKGROUND

[0002] The patent application no. CN202420583249.9 provides a kind of energy-saving and environment-friendly novel structure road sweeper, it is equipped with cab, clean water tank, battery box, dust flushing device, garbage tank, garbage cleaning head, garbage rolling brush, garbage collection conveyor and other components, wherein the dust stirred up by garbage cleaning head, garbage rolling brush and garbage collection conveyor and other cleaning components when working can be sucked into the dust flushing device carried on vehicle through corresponding dust suction hood and dust suction pipeline respectively and carried out dust removal purification treatment.Dust flushing device is provided with two layers of cavities above the frame, the upper cavity is used for dust removal treatment, the lower cavity is used for purifying sewage produced by upper spray dust removal, and the purified clean water is pumped back to the upper dust removal chamber for recycling.

[0003] In use process, it is found that the dust handling design of this road sweeper still has certain defects, mainly reflected in:

[0004] (1), the sewage treatment chamber of dust flushing device lower cavity only uses three-stage filter screen to filter sewage, and the purification effect is not good enough, so that the mud content of water pumped back for repeated use is relatively high, which can easily cause the clogging of spray dust removal nozzle in upper dust removal chamber.

[0005] (2), dust flushing device lacks water replenishment design, and part of circulating water will be consumed with sludge during sewage purification process, so that the spray dust removal effect of upper dust removal chamber will be affected if circulating water cannot be replenished in time.

[0006] (3), the dust stirred up by bottom cleaning component of vehicle cannot be completely sucked away by dust suction hood above it, and part of dust still overflows from both sides of vehicle bottom. INVENTION CONTENTS

[0007] The utility model aims at providing a kind of road sweeper's dust handling system to solve the above-mentioned problems in the dust handling design of road sweeper in prior art.

[0008] The specific technical scheme of the utility model is as follows:

[0009] A kind of road sweeper's dust handling system, it includes: corresponding dust suction hood is respectively set on the periphery of each cleaning component of road sweeper above;Dust processor and clean water tank are set in the upper of the middle part of the frame of road sweeper, sewage tank is set in the lower of the rear part of the frame of road sweeper.

[0010] The upper layer of the dust handling device is a closed cavity, which is divided into an air inlet chamber, a dust removal chamber and an air outlet chamber from right to left by two waterproof and breathable louvers. A group of dust suction pipe joints are arranged on the right side wall of the air inlet chamber and connected with the inner cavity of the air inlet chamber. The dust suction cover of each cleaning component of the road sweeper is connected with the corresponding dust suction pipe joint through a dust suction pipeline. A partition plate is arranged in the middle of the air inlet chamber to divide it into a left half chamber and a right half chamber. An array of small powerful air suction machines is arranged on the partition plate to suck air from the right half chamber to the left half chamber. A stainless steel mesh is arranged on the left side of the louver on the right side of the air outlet chamber. A clean air outlet is arranged on the left side of the air outlet chamber. An outlet fan is arranged in the clean air outlet to discharge air outward. A lateral air outlet with a filter bag is arranged on the outside of the outlet fan. A spraying dust removal nozzle is arranged above the dust removal chamber. A drain outlet is arranged below the dust removal chamber and connected with a drain pipeline to output water outward. A first water pump, a central pipeline water purifier, a water storage tank and a second water pump are arranged in the lower layer of the dust handling device. The water outlet of the first water pump is connected with the water inlet of the central pipeline water purifier through a water supply pipeline. The sewage outlet of the central pipeline water purifier extends to the bottom of the vehicle frame. The purified water outlet of the central pipeline water purifier is connected with the water inlet of the water storage tank through a water supply pipeline. The water storage tank is also connected with a water replenishment pipeline of a fresh water tank on the vehicle frame. A floating ball liquid level switch is arranged in the water storage tank to control the automatic water replenishment of the water replenishment pipeline. The water outlet of the water storage tank is connected with the water inlet of the second water pump through a water supply pipeline. The water outlet of the second water pump is connected with the spraying dust removal nozzle of the dust removal chamber through a water supply pipeline.

[0011] The left sewage tank is divided into three layers of cavities by the second filter screen and the first filter screen arranged in the left sewage tank. The right sewage tank is divided into three layers of cavities by the fourth filter screen and the third filter screen arranged in the right sewage tank. The filter screen density of the first filter screen, the second filter screen, the third filter screen and the fourth filter screen increases gradually. The lower cavity of the left sewage tank is connected with the drain pipeline of the dust handling device through a water inlet. The upper cavity of the left sewage tank is connected with the lower cavity of the right sewage tank through an intermediate pipeline. The upper cavity of the right sewage tank is connected with the water inlet of the first water pump of the dust handling device through a water supply pipeline. The bottom of the lower cavity of each sewage tank is connected with a sewage discharge pipe with a manual valve.

[0012] The dust handling system of the road sweeper also includes dust blocking rubber plates which are vertically arranged from the vehicle frame to the ground and are installed between the front and rear wheels on the left and right sides of the vehicle body. The space surrounded by the dust blocking rubber plates on the left and right sides of the vehicle body is also connected with multiple dust suction pipelines which are connected with the corresponding dust suction pipe joints of the dust handling device. The dust blocking rubber plates on the left and right sides of the vehicle body can block the dust generated by the cleaning components on the vehicle bottom within the range of the vehicle bottom and suck the dust away through the dust suction pipeline, so that the dust cannot overflow from the left and right sides of the vehicle bottom.

[0013] The dust treatment system of the road sweeper is provided with dust blocking rubber plates between the front and rear wheels on the left and right sides of the bottom of the vehicle, so that the dust stirred up by the bottom cleaning component cannot overflow from the left and right sides of the bottom of the vehicle, and the dust treatment system can basically completely absorb the dust stirred up during road sweeping; the dust treatment system is provided with a dust removal chamber on the upper layer of the dust treatment device, which can spray and remove dust from the inhaled dust-containing air, the sewage generated by the spray dust removal flows into the sewage tank, and then sequentially passes through four filter screens for step-by-step filtration, and then is sent into the central pipeline water purifier for further filtration, and the obtained clean water is sent into the water storage tank, and the water in the water storage tank is pumped back to the dust removal chamber by the secondary water pump for reuse. Since the purification effect of the spray dust removal sewage is good, the water pumped back for reuse is not easy to cause the spray dust removal nozzle of the dust removal chamber to be blocked. Since the water storage tank is provided with an automatic water replenishment design, the circulating water can be automatically and timely replenished, and the spray dust removal effect of the dust removal chamber will not be affected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the dust treatment system of the road sweeper installed on the vehicle body.

[0015] Figure 2 It is a left side view of the dust treatment system. Figure 1

[0016] Figure 3 It is a rear side view of the dust treatment device in the dust treatment system. Figure 2

[0017] Figure 4 It is a rear side view of the sewage tank in the dust treatment system. Figure 2 In the drawings: 1-dust treatment device, 2-clean water tank, 3-sewage tank, 4-louver, 5-air inlet chamber, 6-dust removal chamber, 7-air outlet chamber, 8-dust suction pipe joint, 9-baffle, 10-small powerful air extractor, 11-stainless steel screen, 12-clean air outlet, 13-outlet air fan, 14-filter bag, 15-spray dust removal nozzle, 16-drainage pipeline, 17-first stage water pump, 18-central pipeline water purifier, 19-water storage tank, 20-secondary water pump, 21-float level switch, 22-second stage filter screen, 23-first stage filter screen, 24-fourth stage filter screen, 25-third stage filter screen, 26-intermediate pipeline, 27-dust blocking rubber plate, 28-filter screen backflushing pipeline.

[0018] DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings. In the description of the utility model, the "front", "rear", "left", "right", "upper", "lower" orientation words are defined based on the perspective of the vehicle driver, and are only for the convenience of description, and are not the specific orientation that the device or element must have, and should not be regarded as a limitation on the utility model.​​​

[0020] As Figures 1-4 shown, the dust handling system of the road sweeper includes: corresponding dust suction covers are respectively arranged above the periphery of each cleaning component of the road sweeper; a dust processor 1 and a clean water tank 2 are arranged above the middle part of the frame of the road sweeper, and a sewage tank 3 is arranged below the rear part of the frame of the road sweeper.

[0021] The upper layer of the dust processor 1 is a closed cavity, which is sequentially divided into an air inlet chamber 5, a dust removal chamber 6 and an air outlet chamber 7 from right to left by two water-proof and air-permeable louvers 4. A group of dust suction pipe joints 8 are arranged on the right side wall of the air inlet chamber 5 and communicate with the inner cavity of the air inlet chamber 5. The dust suction covers of each cleaning component of the road sweeper are respectively provided with dust suction pipelines connected to the corresponding dust suction pipe joints 8. A partition 9 is arranged in the middle of the air inlet chamber 5 to divide it into a left half chamber and a right half chamber. An array of small powerful air suction machines 10 for drawing air from the right half chamber to the left half chamber is installed on the partition 9. A stainless steel net 11 is arranged on the left side of the louver 4 on the right side of the air outlet chamber 7 for blocking. A clean air outlet 12 is arranged on the left side of the air outlet chamber 7. An outlet air fan 13 for discharging air outward is arranged in the clean air outlet 12. A lateral air outlet with a filter bag 14 is arranged on the outer side of the outlet air fan 13. A spraying dust removal nozzle 15 is arranged above the dust removal chamber 6, and a drainage outlet is arranged below the dust removal chamber 6. The drainage outlet is connected to a drainage pipeline 16 for outputting water outward. A first water pump 17, a central pipeline water purifier 18, a water storage tank 19 and a second water pump 20 are arranged in the lower layer of the dust processor 1. The water outlet of the first water pump 17 is provided with a water supply pipeline connected to the water inlet of the central pipeline water purifier 18. The sewage outlet of the central pipeline water purifier 18 extends downward to the frame. The purified water outlet of the central pipeline water purifier 18 is provided with a water supply pipeline connected to the water inlet of the water storage tank 19. The water storage tank 19 is further provided with a water replenishment pipeline connected to the clean water tank 2 on the frame. A floating ball liquid level switch 21 is arranged in the water storage tank 19 to control the automatic water replenishment of the water replenishment pipeline. The water outlet of the water storage tank 19 is provided with a water supply pipeline connected to the water inlet of the second water pump 20. The water outlet of the second water pump 20 is provided with a water supply pipeline connected upward to the spraying dust removal nozzle 15 of the dust removal chamber 6.

[0022] The sewage tank 3 is provided with two left and right sewage tanks under the frame, the left sewage tank 3 is provided with a second filter screen 22 and a first filter screen 23 which are spaced and distributed upwards and downwards, thereby separating the left sewage tank 3 into three layers of cavities, the right sewage tank 3 is provided with a fourth filter screen 24 and a third filter screen 25 which are spaced and distributed upwards and downwards, thereby separating the right sewage tank 3 into three layers of cavities, the filter screen density of the first filter screen 23, the second filter screen 22, the third filter screen 25 and the fourth filter screen 24 gradually increases, the lower cavity of the left sewage tank 3 is provided with a water inlet connected with the drain pipeline 16 of the dust processor 1, the upper cavity of the left sewage tank 3 is provided with an intermediate pipeline 26 connected to the lower cavity of the right sewage tank 3, the upper cavity of the right sewage tank 3 is provided with a water supply pipeline connected to the water inlet of the first water pump 17 of the dust processor 1, and the lower cavities of the two sewage tanks 3 are both connected with a sewage discharge pipe with a manual valve.

[0023] The dust handling system of the road sweeper further comprises: dust blocking rubber plates 27 which are vertically hung down from the frame to the ground and are installed between the front and rear wheels on the left and right sides of the vehicle body of the road sweeper, and the spaces surrounded by the dust blocking rubber plates 27 on the left and right sides of the vehicle body are also provided with multiple dust suction pipelines connected to the corresponding dust suction pipe joints 8 of the dust processor 1. The dust blocking rubber plates 27 on the left and right sides of the vehicle body can block the dust raised by the sweeping components at the bottom of the vehicle body within the range of the bottom of the vehicle body and suck the dust away through the dust suction pipelines, so that the dust cannot overflow from the left and right sides of the bottom of the vehicle body.

[0024] Further, the dust removal chamber 6 is divided into two compartments by a stainless steel screen 11, each compartment is provided with a spray dust removal nozzle 15 above, and is provided with a drain outlet below, and each drain outlet is connected to the drain pipeline 16 to output externally.

[0025] Further, one side of the upper cavity of each of the two sewage tanks 3 is connected with a filter screen backflushing pipeline 28 with a manual valve, the filter screen backflushing pipeline 28 is connected to the water tank 2 on the frame, so that the filter screen in the sewage tank 3 can be backflushed and cleaned by connecting clean water at regular intervals. Further, the intermediate pipeline 26 between the two sewage tanks 3 is provided with a manual valve, so that one of the sewage tanks 3 can be backflushed and cleaned separately.

[0026] Further, the first filter screen 23, the second filter screen 22, the third filter screen 25 and the fourth filter screen 24 respectively adopt filter screens with 100 meshes, 200 meshes, 250 meshes and 300 meshes.

[0027] Further, the central pipeline water purifier 18 adopts a central pipeline water purifier with a capacity of 10000L and a PVDF anti-pressure hand-washing membrane filter core.

[0028] Further, the small powerful air extractor 10 adopts a 6056 powerful air fan with DC12V and a rotating speed of 20000 revolutions per minute.

[0029] When the dust handling system of the road sweeper is working, the dust stirred up by the cleaning parts under the suction of the small powerful air extractor 10 of the dust handler 1 enters the air inlet chamber 5 of the dust handler 1 through the corresponding dust suction cover and dust suction pipeline, and the dust stirred up by the underbody cleaning parts and not sucked away by the dust suction cover enters the air inlet chamber 5 of the dust handler 1 through the dust blocking rubber plates 27 on the left and right sides of the vehicle. The dust-containing air sucked into the air inlet chamber 5 is subjected to step-by-step spray dust removal in the two compartments of the dust removal chamber 6, and then the dust-removed air is discharged to the outside through the filter bag 14 by the outlet fan 13. The sewage produced by the spray dust removal of the dust removal chamber 6 flows into the lower cavity of the left sewage tank 3 through the drainage pipeline 16, and then passes through the first-stage filter screen 23 and the second-stage filter screen 22 in turn and upwards, and then enters the lower cavity of the right sewage tank 3 through the intermediate pipeline 26, and then passes through the third-stage filter screen 25 and the fourth-stage filter screen 24 in turn and upwards to obtain secondary clean water. The secondary clean water is sent into the central pipeline water purifier 18 by the first-stage water pump 17 for further filtration, and the clean water output by the central pipeline water purifier 18 is sent into the water storage tank 19 for storage. The sewage in the two sewage tanks 3 is backwashed by the clean water in the clean water tank 2 through the upper filter screen backwashing pipeline 28 and the lower sewage discharge pipeline of the sewage tank 3.

[0030] The above examples are only typical embodiments of the present application, and are not used to limit the present application. Any modification or equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dust handling system for a road sweeping vehicle, characterised in that, The dust treatment system comprises: corresponding dust suction covers are respectively arranged above the periphery of each cleaning component of the road sweeper; a dust treatment device (1) and a clean water tank (2) are arranged above the middle part of the frame of the road sweeper, and a sewage tank (3) is arranged below the rear part of the frame of the road sweeper; The upper layer of the dust treatment device (1) is a closed cavity, which is sequentially divided into an air inlet chamber (5), a dust removal chamber (6) and an air outlet chamber (7) from right to left by two water-proof and air-permeable louver windows (4); a group of dust suction pipe joints (8) are arranged on the right side wall of the air inlet chamber (5) and communicate with the inner cavity of the air inlet chamber (5), the dust suction covers of each cleaning component of the road sweeper are respectively provided with dust suction pipelines connected to the corresponding dust suction pipe joints (8), a partition plate (9) is arranged in the middle part of the air inlet chamber (5) to divide it into a left half chamber and a right half chamber, and an array of small powerful air suction machines (10) for sucking air from the right half chamber to the left half chamber is arranged on the partition plate (9); a stainless steel mesh (11) is arranged on the left side of the louver window (4) on the right side of the air outlet chamber (7) to block the air outlet chamber (7), a clean air outlet (12) is arranged on the left side of the air outlet chamber (7), an outlet air fan (13) is arranged in the clean air outlet (12) to output air, and a lateral air outlet with a filter bag (14) is arranged on the outer side of the clean air outlet (12); a spraying dust removal nozzle (15) is arranged above the dust removal chamber (6), and a drainage outlet is arranged below the dust removal chamber (6) and connected to a drainage pipeline (16) to output water; a first water pump (17), a central pipeline water purifier (18), a water storage tank (19) and a second water pump (20) are arranged in the lower layer of the dust treatment device (1), the water outlet of the first water pump (17) is provided with a water supply pipeline connected to the water inlet of the central pipeline water purifier (18), the sewage outlet of the central pipeline water purifier (18) extends downward, the purified water outlet of the central pipeline water purifier (18) is provided with a water supply pipeline connected to the water inlet of the water storage tank (19), the water storage tank (19) is further provided with a water replenishing pipeline connected to the clean water tank (2) on the frame, a float level switch (21) is arranged in the water storage tank (19) to control the automatic water replenishing of the water replenishing pipeline, the water outlet of the water storage tank (19) is provided with a water supply pipeline connected to the water inlet of the second water pump (20), and the water outlet of the second water pump (20) is provided with a water supply pipeline connected to the spraying dust removal nozzles (15) of each compartment of the dust removal chamber (6). The left sewage tank (3) is provided with second and first filter screens (22, 23) arranged at intervals in the up-down direction, thereby dividing the left sewage tank (3) into three chambers in the up-down direction, and the right sewage tank (3) is provided with fourth and third filter screens (24, 25) arranged at intervals in the up-down direction, thereby dividing the right sewage tank (3) into three chambers in the up-down direction, the filter screen density of the first, second, third and fourth filter screens (23, 22, 25, 24) increases gradually, the lower chamber of the left sewage tank (3) is provided with a water inlet connected with a drain pipeline (16) of the dust treatment device (1), the upper chamber of the left sewage tank (3) is provided with an intermediate pipeline (26) connected with the lower chamber of the right sewage tank (3), the upper chamber of the right sewage tank (3) is provided with a water supply pipeline connected with the water inlet of a first water pump (17) of the dust treatment device (1), and the lower chambers of the two sewage tanks (3) are both provided with a sewage discharge pipeline with a manual valve.

2. The fugitive dust handling system of a road sweeping vehicle according to claim 1, wherein, The dust treatment system further comprises dust blocking rubber plates (27) installed between the front and rear wheels on the left and right sides of the vehicle body of the road sweeper and vertically hung from the vehicle frame to the ground, and the space surrounded by the dust blocking rubber plates (27) on the left and right sides is also provided with a plurality of dust suction pipelines connected with corresponding dust suction pipe joints (8) of the dust treatment device (1).

3. The system for controlling dust according to claim 1, wherein The dust removal chamber (6) is divided into two compartments by a stainless steel screen (11), each compartment is provided with a spray dust removal nozzle (15) at the top and a drain outlet at the bottom, and each drain outlet is connected with a drain pipeline (16) for outputting water outside.

4. The fugitive dust handling system of a road sweeping vehicle according to claim 1, wherein, The upper chambers of the two sewage tanks (3) are both provided with a filter screen backflushing pipeline (28) with a manual valve, and the filter screen backflushing pipeline (28) is connected with a clean water tank (2) on the vehicle frame.

5. The system for managing dust emission of a road sweeper according to claim 4, wherein The intermediate pipeline (26) between the two sewage tanks (3) is provided with a manual valve.

6. The fugitive dust handling system of a roadway sweeper vehicle of claim 1, wherein, The first, second, third and fourth filter screens (23, 22, 25, 24) are respectively 100-mesh, 200-mesh, 250-mesh and 300-mesh filter screens.

7. The fugitive dust handling system of a roadway sweeper vehicle of claim 1, wherein, The central pipeline water purifier (18) is a central pipeline water purifier with a capacity of 10000L and a PVDF compression-resistant hand-washing membrane filter core.

8. The fugitive dust handling system of a road sweeping vehicle of claim 1, wherein, The small powerful air extractor (10) is a 6056 powerful air fan with DC12V and a rotation speed of 20000r / min.

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