Waste dust treatment device

Abstract

The utility model discloses a waste dust treatment device, and belongs to the technical field of environmental protection and dust removal. The device comprises a shell, an air inlet pipe, an exhaust pipe and a filter box arranged in the shell, wherein a porous filter plate for dividing the filter box into a dust removal cavity and a water storage cavity is arranged in the filter box; the water storage cavity is communicated with a sprinkler head at the top of the dust removal cavity, and the dust removal cavity is communicated with an air inlet pipe and an exhaust pipe driven by a fan to realize water mist dust removal of dust-containing gas; a scraping plate driven by a first telescopic cylinder is arranged above the porous filter plate, so that deposited slag can be pushed into a slag collecting box through a slag discharging opening, and cleaning is facilitated; the device is compact in structure and high in dust removal efficiency, has the functions of automatic deslagging and water recycling, and is suitable for waste dust treatment scenes such as building demolition and processing workshops; and by integrating a water spraying dust removal mechanism and a mechanical deslagging mechanism, the treatment efficiency and the maintainability of the equipment are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental governance, specifically to a waste dust treatment device. Background Technology

[0002] A carbonization furnace is an industrial device used to heat and decompose organic materials (such as wood, straw, fruit shells, coal, etc.) in an oxygen-deficient or oxygen-limited environment, remove volatile substances (such as water, tar, resin, etc.) through high-temperature pyrolysis, and finally transform them into high-purity charcoal, activated carbon, biochar or other carbon-based functional materials.

[0003] However, during the quenching process, the rapid contact between the high-temperature carbonized material and the cooling medium (such as water or inert gas) can easily cause local thermal stress cracking or internal structural disintegration, resulting in a large amount of fine particulate dust, which poses a threat to personnel and machinery. Therefore, dust control devices are needed to control the dust.

[0004] CN214715434U discloses a construction site dust control device. The construction site dust control device includes a box with multiple rollers at the bottom, an air inlet at the front, an air outlet, a display control panel, and a handle at the top, and a power interface at the bottom. Inside, there is a water tank, a controller, a drive system, a water pump, a dust treatment box, and a fan. The water tank has a slag box with a filter cloth at the bottom. The dust treatment box has an atomizing nozzle and a tortuous guide channel, which connects to the water tank, the air inlet pipe, and the air outlet pipe.

[0005] However, in practical applications, the construction site dust control device disclosed in CN214715434U is prone to clogging of the filter screen after some hydrophilic particles in the dust expand when they come into contact with water, causing the device to fail. Furthermore, due to the structural design of the slag box being installed inside the water tank, the volume of the filter box is too small to meet the high dust load requirements generated by the carbonization process. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a waste dust treatment device. The device has a slag collection box set on one side of the filter box, and a scraper is slidably engaged on the upper surface of the porous filter plate. The scraper is driven to move by a first telescopic cylinder to push the slag accumulated on the porous filter plate into the slag collection box. This solves the problem in the prior art that dust expands when it comes into contact with water, accumulates in the slag box, and causes the filter screen to become clogged, thus causing the device to fail.

[0007] This objective is achieved using the following technical solution:

[0008] A waste dust treatment device includes a housing, with an air inlet at the front end of the housing communicating with the inlet end of an air inlet pipe, and an exhaust outlet at the top of the housing communicating with the outlet end of an exhaust pipe.

[0009] A filter box is fixedly installed inside the housing. A porous filter plate is horizontally installed inside the filter box, and the porous filter plate divides the filter box into an upper dust removal chamber and a lower water storage chamber.

[0010] In existing technologies, flexible filter cloth is often installed at the bottom of the slag collection box to achieve water-slag separation. However, because the flexible filter cloth is made of soft material, it is prone to collapse and deformation when exposed to water, and it is also very easy to be clogged by slag during use, making cleaning difficult. This results in poor equipment operation stability, high maintenance costs, and is not conducive to continuous and efficient operation.

[0011] To address this issue, this invention innovatively incorporates a porous filter plate within the filter box to replace the traditional flexible filter cloth. This porous filter plate is made of rigid material, possessing excellent structural support and anti-clogging capabilities, effectively supporting accumulated slag without deformation. Simultaneously, the upper surface of the filter plate works in conjunction with a sliding scraper, utilizing a telescopic drive structure to automatically remove accumulated slag and push it into the slag collection box, forming a highly efficient automatic slag discharge mechanism. This effectively overcomes the technical shortcomings of existing technologies, such as easy clogging, lack of durability, and inconvenient cleaning of filter cloths.

[0012] The dust removal chamber is connected to the outlet end of the air inlet pipe and the inlet end of the air outlet pipe respectively. A fan is installed on the air outlet pipe. The water storage chamber is connected to a water spray head installed at the top of the dust removal chamber through a water pipe. A water pump is installed on the water pipe.

[0013] The exhaust duct is equipped with a fan to drive airflow, allowing external dust-laden gas to enter the dust removal chamber through the air inlet duct, and discharging the gas filtered through the dust removal chamber, thus completing the gas circulation, filtration and discharge process within the device, ensuring dust removal efficiency and ventilation stability.

[0014] The water pipe is equipped with a water pump, which is used to transport water in the water storage chamber to the water spray head set at the top of the dust removal chamber to achieve uniform spraying treatment of the internal space of the dust removal chamber, thereby enhancing the dust humidification and settling effect. Through the return and reuse of water, a closed circulation system is formed, which effectively achieves the purpose of water conservation.

[0015] A slag collection box is provided on one side of the filter box, and a first telescopic cylinder is provided on the opposite side. The slag collection box is connected to the bottom of the dust removal chamber through a slag discharge port opened on the side wall of the filter box. The telescopic rod of the first telescopic cylinder extends horizontally into the filter box, and a scraper is fixedly connected to its end. The bottom surface of the scraper slides in cooperation with the upper surface of the porous filter plate, which is used to push the slag accumulated on the porous filter plate into the slag collection box through the slag discharge port. The first telescopic cylinder is a servo electric cylinder. A controller is provided in the housing. The controller is electrically connected to the servo electric cylinder and is used to provide power to the electric cylinder and control the extension and retraction of the telescopic rod of the electric cylinder.

[0016] In existing technologies, most waste dust treatment devices use flexible filter cloths for filtration, but there is a lack of effective filter cloth cleaning devices. They usually rely on manual cleaning by periodically disassembling filter components or slag collection devices, which has problems such as high labor intensity, incomplete slag removal, and low efficiency. If the filter slag on the flexible filter cloth is not cleaned in time, it is easy to cause filter cloth blockage, which will affect the long-term stable operation of the device.

[0017] To address the aforementioned shortcomings, this utility model features a servo electric cylinder on one side of the filter box and an electrical control system inside the housing. The controller precisely controls the extension and retraction of the servo electric cylinder, enabling the scraper to automatically reciprocate and effectively push the slag accumulated on the porous filter plate to the slag discharge port, where it is further discharged into a specially designed slag collection box.

[0018] The slag collection box has a large volume, which can collect more slag, reduce the frequency of slag discharge, facilitate centralized processing, significantly reduce the intensity of manual maintenance, and improve slag discharge efficiency and the continuity and stability of equipment operation.

[0019] Preferably, a second telescopic cylinder is provided inside the housing, and a water baffle is installed at the end of the telescopic rod of the second telescopic cylinder. The water baffle opens and closes the slag discharge port under the action of the second telescopic cylinder to reduce the amount of water entering the slag collection box.

[0020] A baffle plate is slidably fitted at the slag discharge port. The baffle plate is used to effectively prevent water sprayed from the water nozzles set at the top of the dust removal chamber from entering the slag collection box, thus avoiding a large amount of water entering the slag collection box. In addition, the second telescopic cylinder can open the slag discharge port when the first telescopic cylinder is running under the control of the controller, realizing the automatic opening and closing of the slag discharge port during slag discharge.

[0021] Preferably, the water inlet pipe of the water pump is equipped with a filter for filtering the water from the storage chamber;

[0022] In existing technologies, the lack of a filtration device in the circulating water system leads to the continuous accumulation of dust particles and other impurities, causing rapid deterioration of the circulating water quality. This results in clogging of the spray nozzles' micropores, reduced spray uniformity, and the impact of hard particles on the pump impeller by the water flow, causing mechanical wear and cavitation damage. Frequent shutdowns are required to replace the spray nozzles or repair the pump. This invention adds a ceramic filter element to the pump inlet to perform multi-stage purification of the circulating water, effectively intercepting ultrafine particles and corrosive substances. This prevents spray nozzle clogging, reduces pump wear, enhances the stability of continuous equipment operation, and reduces maintenance frequency.

[0023] Preferably, the bottom of the scraper is provided with a wear-resistant layer made of a sliding bearing material;

[0024] The sliding bearing material can be PTFE (polytetrafluoroethylene), which has excellent wear resistance, low coefficient of friction and good chemical stability. It can significantly reduce the frictional resistance of the scraper during reciprocating motion, extend the service life of the scraper and filter plate, and ensure the smoothness and continuity of the slag discharge action.

[0025] Preferably, the height of the outlet end of the air inlet pipe is lower than the height of the inlet end of the air outlet pipe;

[0026] By making the airflow flow from bottom to top within the housing, it is beneficial for the airflow to carry dust particles upward as it passes through the porous filter plate, and to fully wet and settle them under the spraying action, thereby improving dust removal efficiency.

[0027] Preferably, both the outlet end of the air inlet pipe and the inlet end of the air outlet pipe are provided with water-blocking baffles, and the water-blocking baffles are composed of several guide vanes that extend obliquely downward into the dust removal chamber.

[0028] The guide vanes effectively block and guide water mist, preventing moisture from entering the air inlet and outlet pipes along the airflow direction, reducing the risk of corrosion to equipment such as fans, and maintaining smooth airflow.

[0029] Preferably, the housing is mounted on the platform of the trolley via a detachable structure;

[0030] By incorporating a detachable structure, the treatment device and the trolley can be quickly assembled and disassembled, facilitating the movement, transportation, and maintenance of the device, enhancing the flexibility and convenience of on-site operations, and improving the applicability and practicality of the equipment.

[0031] Preferably, the air inlet of the housing is provided with a filter screen to prevent large particles from entering the dust removal chamber;

[0032] Larger impurities in the air can be pre-filtered before the gas enters the device, effectively preventing them from entering the dust removal chamber and clogging the porous filter plate or affecting the operation of the spray system, ensuring the operational stability of the entire dust removal system, and improving the service life and dust removal efficiency of the device.

[0033] Preferably, the housing is provided with an openable and closable cleaning door on the side wall corresponding to the installation position of the slag collection box, which facilitates the cleaning of slag in the slag collection box;

[0034] By setting up cleaning doors, operators can quickly open the cleaning channel without disassembling the casing or slag collection box, improving the convenience of slag removal operations, reducing maintenance time and labor intensity, and helping to ensure the continuous and efficient operation of the equipment.

[0035] Preferably, the scraper has several vertically extending water channels, the top of each water channel is connected to a spray head via a hose, the bottom of each water channel is provided with a spray head, and the front of the scraper has a downwardly extending extension, the bottom surface of which slides on the upper end surface of the first telescopic rod of the porous filter plate.

[0036] In the prior art, waste often clogs the porous filter plate, which significantly affects the water circulation between the spray system and the water storage chamber, causing the dust control device to malfunction. Therefore, a vertically extending water channel is set in the scraper, and the nozzles set downward in the water channel can spray water to clear the through holes on the porous filter plate.

[0037] The beneficial effects of this utility model are as follows:

[0038] 1. The use of rigid porous filter plates to replace traditional flexible filter cloth provides stronger structural support and anti-clogging ability. It is not easy to deform or collapse, which significantly improves the filtration stability and durability of the device and solves the technical problems of flexible filter cloth being easy to clog, difficult to clean, and having a short lifespan.

[0039] 2. The servo electric cylinder drives the scraper to automatically reciprocate, pushing the slag on the filter plate surface into the slag collection box, realizing automated slag discharge operation, reducing manual intervention, improving slag discharge efficiency, and significantly reducing labor intensity and maintenance costs.

[0040] 3. The spray system and the water storage chamber form a closed loop circulation. The internal spraying is achieved through the water pump and spray head, which effectively promotes the humidification and sedimentation of dust. Combined with the filter, the water quality is purified, reducing spray head clogging and pump wear, extending the service life of the equipment, and achieving the goal of water saving. In addition, by setting up the filter, a second filtration can be carried out on the basis of the first filtration by the porous filter plate.

[0041] 4. By setting up a water-blocking baffle composed of guide vanes, the airflow is rationally guided and water mist is prevented from flowing back into the inlet / outlet duct, ensuring the safe operation of the fan and improving the dust removal efficiency and ventilation stability of the system.

[0042] 5. Equipped with an openable and closable cleaning door and a large-capacity slag collection box, it facilitates regular cleaning of residues, extends the cleaning cycle, reduces the frequency of equipment disassembly, and supports rapid maintenance, thereby improving the overall ease of operation.

[0043] 6. The device housing is fixed to the trolley platform by a detachable structure, which facilitates equipment movement, relocation, and flexible deployment, adapting to various industrial environments and enhancing the applicability and scenario expansion capabilities of the device. Attached Figure Description

[0044] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0045] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0046] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0047] Figure 3 This is a schematic diagram of the water-blocking baffle in this utility model;

[0048] Figure 4 This is a structural schematic diagram of one embodiment of the present invention.

[0049] Among them, 1-shell, 2-air inlet pipe, 3-air inlet, 4-exhaust pipe, 5-exhaust outlet, 6-filter box, 7-porous filter plate, 8-dust removal chamber, 9-water storage chamber, 10-fan, 11-water pipe, 12-spray head, 13-water pump, 14-slag collection box, 15-first telescopic cylinder, 16-slag discharge port, 17-telescopic rod, 18-scraper, 181-waterway, 182-spray head, 183-extension, 19-water baffle, 20-filter, 21-wear-resistant layer, 22-water-blocking baffle, 23-controller, 24-trolley, 25-platform, 26-mounting plate, 27-filter screen, 28-cleaning door, 29-second telescopic cylinder. Detailed Implementation

[0050] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0051] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0052] Example 1

[0053] like Figure 1 As shown, a waste dust treatment device includes a housing 1, which is rectangular. The front end of the housing 1 is provided with an air inlet 3 that is connected to the inlet end of the air inlet pipe 2. The opening area of ​​the air inlet 3 at the inlet end is larger than the opening area at the outlet end, presenting a funnel-shaped structure. The top of the housing 1 is provided with an exhaust outlet 5 that is connected to the outlet end of the exhaust pipe 4.

[0054] A filter box 6 is fixedly installed inside the housing 1. A porous filter plate 7 is horizontally installed inside the filter box 6. The porous filter plate 7 is a rigid structure and has a number of micropores evenly distributed on it. The porous filter plate 7 divides the filter box 6 into an upper dust removal chamber 8 and a lower water storage chamber 9. The dust removal chamber 8 serves as the main filtration area for waste dust gas, and the water storage chamber 9 is used to collect and store the water generated during the spraying process.

[0055] The dust removal chamber 8 is connected to the outlet end of the air inlet pipe 2 and the inlet end of the air outlet pipe 4 respectively. The air outlet pipe 4 is equipped with a fan 10. The water storage chamber 9 is connected to the water spray head 12 set on the top of the dust removal chamber 8 through a water pipe 11. The water pipe 11 is equipped with a water pump 13.

[0056] Dust-laden gas enters the dust collection chamber 8 through the inlet duct 2. Within this chamber, the gas undergoes filtration by the porous filter plate 7 and wet treatment by water spraying from the nozzles 12, effectively capturing and settling the dust. The inlet end of the exhaust duct 4 connects to the dust collection chamber 8, and a fan 10 is installed on the exhaust duct. The fan 10 provides power to drive the airflow from the inlet duct 2 through the dust collection chamber 8 to the exhaust duct 4, achieving gas circulation and discharge within the system. The fan ensures the stability and continuity of airflow within the device, guaranteeing efficient passage of waste dust gas. The filtration system includes a water storage chamber 9 located at the bottom of the filter box 6, which is connected to a water spray head 12 at the top of the dust removal chamber 8 via a water pipe 11. This connection structure enables the circulation of water. A water pump 13 is installed on the water pipe 11 and is responsible for pumping water from the water storage chamber 9 to the water spray head 12 at the top of the dust removal chamber 8. This allows water to be evenly sprayed into the airflow within the dust removal chamber, enhancing the humidification and settling effect of dust, realizing the reuse of water resources, reducing overall water consumption, and improving the environmental benefits and operational economy of the equipment.

[0057] A slag collection box 14 is provided on the outer side to collect the slag discharged through the slag discharge port 16 of the filter box, thereby improving the slag discharge efficiency and facilitating subsequent processing. The slag collection box 14 is connected to the bottom of the dust removal chamber 8 through the slag discharge port 16 opened on the side wall of the filter box 6. A first telescopic cylinder 15 is installed on the outer end face of the filter box 6 connected to the slag collection box 14. The first telescopic cylinder 15 is a servo electric cylinder. A controller 23 is provided inside the housing 1. The controller 23 is electrically connected to the servo electric cylinder and is used to provide power to the electric cylinder and control the extension and retraction of the first telescopic rod 17 of the electric cylinder. The first telescopic rod 17 of the first telescopic cylinder 15 extends horizontally into the filter box 6, and a scraper 18 is fixedly connected to its end. The bottom surface of the scraper 18 slides with the upper surface of the porous filter plate 7 to push the slag accumulated on the porous filter plate 7 into the slag collection box 14 through the slag discharge port 16.

[0058] Example 2

[0059] Based on the above embodiment 1, the housing 1 is provided with a second telescopic cylinder 29. In this embodiment, the second telescopic cylinder 29 is located on the front side of the slag collection box 13. The telescopic rod of the second telescopic cylinder 29 passes through the slag collection box 13, and a baffle plate 19 is installed at the end. When the second telescopic cylinder 29 is fully extended, the baffle plate 19 can completely cover the slag discharge port 16. When the second telescopic cylinder 29 is retracted, the baffle plate 19 is located inside the slag collection box 14, thereby realizing the opening and closing of the slag discharge port 16 and reducing the amount of water entering the slag collection box 14.

[0060] Specifically, the water pump 13 is electrically connected to the controller 23. When the servo electric cylinder 15 drives the scraper 18 to slide along the upper surface of the porous filter plate 7 and pushes the slag towards the slag discharge port 16, the controller controls the water pump 13 and the blower 10 to stop running and controls the second telescopic cylinder 29 to retract. After the slag discharge is completed, when the second telescopic cylinder 29 is fully extended, the baffle plate 19 restores its coverage of the slag discharge port 16.

[0061] Example 3

[0062] Based on the above embodiment 1, a filter 20 is provided on the water pipe 11 connected to the water inlet of the water pump 13 for filtering the water from the water storage chamber 9. The filter 20 can be a ceramic filter element filter. Specifically, the filter 20 can effectively intercept suspended dust particles, impurities and other solid particles in the water, preventing these particles from entering the water pump 13 and the spray head 12 with the water flow. This not only avoids clogging of the spray head 12 holes and ensures the uniform spraying effect of the spray system, but also reduces the wear and cavitation risk of the impeller of the water pump 13 caused by the impact of hard particles. In addition, secondary filtration is achieved on the basis of the porous filter plate 7. It is worth mentioning that a door can be opened on the housing 1 to facilitate the removal of the filter element of the filter 20, thereby facilitating the replacement of the filter element of the filter 20.

[0063] Example 4

[0064] Based on Embodiment 1 above, the scraper 18 has a wear-resistant layer 21 made of a sliding bearing material at its bottom. This wear-resistant layer 21 is preferably made of a material with a low coefficient of friction and high wear resistance, such as polytetrafluoroethylene (PTFE). This wear-resistant layer 21 can significantly reduce the frictional resistance between the scraper 18 and the upper surface of the porous filter plate 7, reduce the wear of the scraper 18, and improve its service life. Simultaneously, this design ensures that the scraper 18 moves more smoothly and steadily during the reciprocating scraping of slag, improving slag discharge efficiency and preventing jamming or damage caused by excessive friction.

[0065] Example 5

[0066] Based on Embodiment 1 above, the outlet end of the air inlet pipe 2 is located on one side of the filter box 6, while the inlet end of the exhaust pipe 4 is located on the opposite side of the outlet end of the air inlet pipe 2. It is worth noting that the height of the outlet end of the air inlet pipe 2 is lower than the height of the inlet end of the exhaust pipe 4; this structural arrangement allows the airflow to follow an upward flow path within the filter box 6, achieving efficient dust humidification, settling, and retention through the combined action of water mist spraying and filtration by the porous filter plate 7.

[0067] Example 6

[0068] Based on the above embodiment 1, as follows Figure 3 As shown, both the outlet end of the air inlet pipe 2 and the inlet end of the air outlet pipe 4 are equipped with water-blocking baffles 22. The water-blocking baffles 22 are composed of several guide vanes that extend obliquely downward into the dust removal chamber 8. This water-blocking baffle structure can guide the sprayed water and prevent the sprayed water from entering the air inlet pipe 2 and the air outlet pipe 4 with the airflow, avoiding water backflow that could cause equipment corrosion and functional damage. At the same time, the oblique downward design of the guide vanes helps the water droplets to drip back into the dust removal chamber 8, improving the stable operation of the dust removal system.

[0069] Example 7

[0070] Based on Embodiment 1 above, the housing 1 can be mounted on the trolley 24 to facilitate convenient movement of the equipment. Specifically, the housing 1 is fixedly mounted on the platform 25 of the trolley 24 via a detachable structure; the detachable structure includes a mounting plate 26 located at the bottom of the housing 1, which is detachably connected to the platform 25 of the trolley 24 by bolts; this design not only ensures a stable connection between the housing 1 and the trolley 24, but also facilitates quick assembly and disassembly, making it convenient for on-site movement, transportation, and maintenance; there are many other implementations of the detachable connection, such as using ropes to tie the housing 1 to the platform 25 of the trolley 24.

[0071] Example 8

[0072] Based on the above embodiment 1, a filter screen 27 is provided at the air inlet of the housing 1 to block large particles from entering the dust removal chamber 8. The filter screen 27 can effectively prevent larger particles, such as stones, from entering the device, avoiding clogging of the porous filter plate 7 or damage to the internal spray system, ensuring the stable operation of the dust removal system and extending the equipment life.

[0073] Example 9

[0074] Based on the above embodiment 1, see Figure 2The housing 1 has an openable and closable cleaning door 28 on the side wall corresponding to the installation position of the slag collection box 14, which facilitates the cleaning of slag in the slag collection box 14. The cleaning door 28 is designed to be easy for the operator to open quickly, reducing the steps and workload of disassembling the equipment, improving the convenience and efficiency of slag discharge and maintenance, and contributing to the continuous and stable operation of the equipment.

[0075] Example 10

[0076] Based on the above embodiment 1, see Figure 4 The first telescopic rod 17 of the first telescopic cylinder 15 extends horizontally into the filter box 6, and a scraper 18 is fixedly connected to its end. The scraper 18 has a vertically extending water channel, and a nozzle is provided at the bottom of the water channel. The top of the water channel is connected to the spray head 12 through a hose, which is used to guide the high-pressure water of the spray head 12 to spray vertically downward toward the porous filter plate 7, thereby cleaning the blockage in the porous filter plate 7. The nozzle is 1-2 cm away from the upper end face of the porous filter plate 7. The front part of the scraper 18 has an extension that extends obliquely downward. The extension slides on the upper end face of the porous filter plate 7 to push the slag accumulated on the porous filter plate 7 into the slag collection box 14 through the slag discharge port 16.

[0077] It is worth noting that, in this example, the water pump 13 should have the ability to adjust its water flow rate under the control of the controller 23. When cleaning the porous filter plate 7, the water flow rate should be increased to increase the water flow pressure.

[0078] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0079] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A waste dust treatment device, comprising a housing (1), wherein the front end of the housing (1) is provided with an air inlet (3) communicating with the inlet end of an air inlet pipe (2), and the top of the housing (1) is provided with an exhaust outlet (5) communicating with the outlet end of an exhaust pipe (4), characterized in that: A filter box (6) is fixedly installed inside the housing (1). A porous filter plate (7) is horizontally installed inside the filter box (6). The porous filter plate (7) divides the filter box (6) into an upper dust removal chamber (8) and a lower water storage chamber (9). The dust removal chamber (8) is connected to the outlet end of the air inlet pipe (2) and the inlet end of the exhaust pipe (4) respectively. The exhaust pipe (4) is equipped with a fan (10). The water storage chamber (9) is connected to the water spray head (12) set on the top of the dust removal chamber (8) through the water pipe (11). The water pipe (11) is equipped with a water pump (13). The filter box (6) has a slag collection box (14) on one side and a first telescopic cylinder (15) on the opposite side. The slag collection box (14) is connected to the bottom of the dust removal chamber (8) through a slag discharge port (16) opened on the side wall of the filter box (6). The first telescopic rod (17) of the first telescopic cylinder (15) extends horizontally into the filter box (6), and a scraper (18) is fixedly connected to its end. The bottom surface of the scraper (18) slides with the upper surface of the porous filter plate (7) to push the slag accumulated on the porous filter plate (7) into the slag collection box (14) through the slag discharge port (16).

2. The waste dust treatment device as described in claim 1, characterized in that: The housing (1) is provided with a second telescopic cylinder (29). A baffle plate (19) is installed at the end of the telescopic rod of the second telescopic cylinder (29). The baffle plate (19) opens and closes the slag discharge port (16) under the action of the second telescopic cylinder (29) to reduce the amount of water entering the slag collection box (14).

3. The waste dust treatment device as described in claim 1, characterized in that: The water inlet of the water pump (13) is connected to a water pipe (11) equipped with a filter (20) for filtering water from the water storage chamber (9).

4. The waste dust treatment device as described in claim 1, characterized in that: The scraper (18) has a wear-resistant layer (21) made of sliding bearing material at its bottom.

5. The waste dust treatment device as described in claim 1, characterized in that: The height of the outlet end of the air inlet pipe (2) is lower than the height of the inlet end of the exhaust pipe (4).

6. The waste dust treatment device as described in claim 1, characterized in that: Water-blocking baffles (22) are provided at the outlet end of the air inlet pipe (2) and the inlet end of the exhaust pipe (4). The water-blocking baffles (22) are composed of several guide vanes that extend obliquely downward into the dust removal chamber (8).

7. The waste dust treatment device as described in claim 1, characterized in that: The housing (1) is detachably mounted on the platform (25) of the trolley (24).

8. The waste dust treatment device as described in claim 1, characterized in that: The air inlet of the housing (1) is provided with a filter screen (27) to block large particles from entering the dust removal chamber (8).

9. The waste dust treatment device as described in claim 1, characterized in that: The housing (1) has an openable and closable cleaning door (28) on the side wall at the installation position of the corresponding slag collection box (14) to facilitate cleaning of the slag in the slag collection box (14).

10. The waste dust treatment device as described in claim 1, characterized in that: The scraper (18) is provided with several vertically extending water channels (181). The top of each water channel (181) is connected to a spray head (12) via a hose. Each water channel (181) is provided with a spray head (182) at the bottom. The front part of the scraper (18) is provided with an extension (183) extending downwards. The bottom surface of the extension (183) slides on the upper surface of the porous filter plate (7).

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