Negative pressure dust collection device
Through the design of the negative pressure vacuum cleaner device, dust-containing flue gas is filtered using filter boxes, water pumps and multi-layer filter plates, solving the problem of flue gas leakage caused by wear of centrifugal fan sealing components, and achieving environmental protection and health and safety.
Patent Information
- Application Number
- CN202422557597.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In the high temperature and high dust-containing conditions, the sealing components are prone to wear, resulting in dust-containing flue gas leakage, polluting the environment and endangering health.
A negative pressure vacuum suction device is designed to filter dust-containing flue gas by spraying filter water through a combination of a filter box, a water pump, a fan and an air filter plate, and suck it into the filter box through a negative pressure tube. The dust is further filtered by using a multi-layer filter plate and an air filter plate to prevent the flue gas from evacuating.
Effectively filter dust pollutants in dust-containing flue gas to prevent them from entering the air, protect the health of staff, and achieve full removal of dust and reuse of filtered water.
Smart Images
Figure CN223248087U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of negative pressure dust collection, and in particular to a negative pressure dust collection device. Background Art
[0002] Centrifugal fans are driven fluid machines that rely on input mechanical energy to increase gas pressure and discharge the gas. They are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and air induction in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; grain drying and conveying; wind tunnel air supply and hovercraft inflation and propulsion.
[0003] Existing centrifugal fans are usually used in working conditions with high-temperature media and high-dust media. It is necessary to leave a fitting gap between the centrifugal fan casing (relatively stationary component) and the centrifugal fan main shaft (relatively moving component). This fitting gap is usually sealed with packing or airtight seal.
[0004] The above-mentioned existing technical solutions have the following defects: in the environment of high-temperature medium and high-dust medium, the sealing components are prone to wear, resulting in reduced sealing effect and shaft end leakage, causing dust-containing flue gas to escape into the air, polluting the environment and endangering the health of workers. Utility Model Content
[0005] In order to prevent dust-laden fumes from entering the air and polluting the environment, and endangering the health of workers, the present application provides a negative pressure dust collection device.
[0006] The above technical objectives of this application are achieved through the following technical solutions:
[0007] A negative pressure dust suction device comprises a base, a filter box, a water pump and a fan, the filter box and the water pump are arranged at both ends of the upper surface of the base, the filter box is arranged vertically, and a dust suction hole is opened on the side wall of the filter box. The fan is arranged above the water pump through supporting legs, and the fan is connected to the upper part of the filter box through a negative pressure pipe, a second receiving groove is opened on the outer wall of the negative pressure pipe, a second placement hole is opened at the bottom of the second receiving groove, a placement groove is opened on the inner wall of the negative pressure pipe, and the placement groove is provided with an opening at the bottom of the second receiving groove, an air filter plate is arranged in the negative pressure pipe, and the air filter plate is inserted into the placement groove through the second placement hole.
[0008] By adopting the above technical solution, a base, a filter box, a water pump, a fan, a negative pressure pipe and an air filter plate are set up, the dust suction hole of the filter box is connected to the shaft end of the centrifugal fan through a connecting pipe, and the filter box filters the dust-laden flue gas by spraying filtered water to prevent the dust-laden flue gas from entering the air and polluting the environment, endangering the health of the workers. The water pump can reuse the filtered water, and the fan discharges the air in the filter box through the negative pressure pipe to create negative pressure, thereby sucking the dust-laden flue gas in the centrifugal fan into the filter box for filtration. The air filter plate can further filter the dust-laden flue gas filtered in the filter box, fully remove the dust pollutants in the dust-laden flue gas, and prevent the dust-laden flue gas from entering the air and polluting the environment.
[0009] Optionally, the water pump is connected to the lower part of the filter box through a collecting pipe, and the water pump is connected to the upper part of the filter box through a circulating water pipe. A square-shaped spray pipe is suspended in the upper part of the filter box, and the spray pipe is connected to the end of the circulating water pipe that penetrates into the upper end of the filter box. Spray holes are opened on the surrounding wall of the spray pipe.
[0010] By adopting the above technical solution and setting up a spray pipeline, the reused filtered water can be sprayed to filter the dust-laden flue gas and collect the dust pollutants in the dust-laden flue gas.
[0011] Optionally, two spray pipes are provided, and the two spray pipes are spaced apart in inner and outer circles along the center line of the filter box. The spray holes of the outer circle spray pipe face the inner wall of the filter box, and the spray holes of the inner circle spray pipe face the bottom of the filter box.
[0012] By adopting the above technical solution, the spray holes in the outer ring facing the inner wall of the filter box can collect dust pollutants attached to the inner wall of the filter box.
[0013] Optionally, two layers of filter plates are provided in the filter box, the surfaces of the two layers of filter plates are parallel to each other and spaced apart, and the surfaces of the filter plates are perpendicular to the length direction of the filter box.
[0014] By adopting the above technical solution and setting up filter plates, the filtered water after dust removal can be filtered, and the dust pollutants contained in the filtered water can be fully filtered and collected, which facilitates the reuse of the filtered water. The two-layer filter plate has a stronger filtering effect.
[0015] Optionally, a first receiving groove is provided on the side wall of the filter box, a first movable door is provided in the first receiving groove, a first placement hole is provided at the bottom of the first receiving groove, an insertion groove is provided on the inner wall of the filter box, the insertion groove is provided with an opening at the bottom of the first receiving groove, and the filter plate is inserted in the insertion groove.
[0016] By adopting the above technical solution and providing the first movable door and the first placement hole, it is possible to conveniently clean the dust pollutants collected by filtration, and it is also convenient to clean and replace the filter plate that has been used for a long time.
[0017] Optionally, a sealing groove is provided on the wall of the first placement hole, and the sealing groove has an opening at the bottom of the first accommodating groove. A sealing plate is provided on the surface of the first movable door that is attached to the first accommodating groove, and the sealing plate is inserted into the sealing groove.
[0018] By adopting the above technical solution and providing a sealing plate, the first movable door can be sealed to prevent the filtered and collected dust pollutants from escaping into the air again.
[0019] Optionally, the first movable door is locked in the first receiving groove by a simple door lock, and the simple door lock includes a lock block, a lock box and a lock rod, the lock block is fixed to the first movable door, the side wall of the lock box is fixed to the peripheral wall of the filter box, a lock hole is provided on the lock block, the lock rod is inserted into the lock box and slidably arranged in the lock box, and one end of the lock rod can be inserted into the lock hole.
[0020] By adopting the above technical solution, the first movable door can be locked on the filter box by setting a locking block, a locking box and a locking rod, preventing the first movable door from detaching from the filter box during use of the dust collection device. The locking is performed using a locking block, a lock box and a locking rod, which has a simple structure and is convenient and fast.
[0021] Optionally, the end surface of the locking rod inserted into the locking hole is processed to form a bevel.
[0022] By adopting the above technical solution and providing the inclined surface, it is possible to lock the first movable door without manually pulling the locking rod downward.
[0023] Optionally, the bottom of the filter box is processed to form a slope.
[0024] By adopting the above technical solution and providing an inclined surface at the bottom of the filter box, filtered water can be conveniently collected for reuse.
[0025] In summary, this application has the following technical effects:
[0026] 1. The base, filter box, water pump, fan, negative pressure pipe and air filter plate are provided. The dust suction hole of the filter box is connected to the shaft end of the centrifugal fan through a connecting pipe. The filter box filters the dust-laden flue gas by spraying filtered water to prevent the dust-laden flue gas from entering the air and polluting the environment, endangering the health of workers. The water pump can reuse the filtered water. The fan discharges the air in the filter box through the negative pressure pipe to create negative pressure, thereby sucking the dust-laden flue gas in the centrifugal fan into the filter box for filtration. The air filter plate can further filter the dust-laden flue gas filtered in the filter box, fully remove the dust pollutants in the dust-laden flue gas, and prevent the dust-laden flue gas from entering the air and polluting the environment.
[0027] 2. By setting up a spray pipeline, the reused filtered water can be sprayed to filter the dust-laden flue gas and collect the dust pollutants in the dust-laden flue gas;
[0028] 3. By setting up the filter plate, the filtered water after dust removal can be filtered, and the dust pollutants contained in the filtered water can be fully filtered and collected, which is convenient for the reuse of the filtered water. The two-layer filter plate has a stronger filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is the appearance structure diagram of this application;
[0030] Figure 2 This is a structural diagram of the application after opening from another angle;
[0031] Figure 3 It is a prominent structural diagram of the negative pressure tube of this application;
[0032] Figure 4 It is a prominent structural diagram of the simple door lock of this application.
[0033] Explanation of the accompanying drawings: 1. Filter assembly; 11. Base; 12. Filter box; 121. Dust suction hole; 122. First accommodating groove; 123. First placement hole; 124. Insertion groove; 125. Sealing groove; 126. Connecting pipe; 13. Spray pipe; 131. Spray hole; 14. First movable door; 141. Sealing plate; 15. Simple door lock; 151. Lock block; 152. Lock hole; 153. Lock box; 154. Lock rod; 16. Filter plate; 17. Water pump; 18. Collection pipe; 19. Circulating water pipe; 2. Negative pressure assembly; 21. Fan; 211. Air outlet; 22. Negative pressure pipe; 221. Second accommodating groove; 222. Second placement hole; 223. Placement groove; 23. Second movable door; 24. Air filter plate. DETAILED DESCRIPTION
[0034] The present application is further described in detail below with reference to the accompanying drawings.
[0035] The present application discloses a negative pressure dust collection device, referring to Figure 1 The negative pressure dust collection device includes a filter component 1 and a negative pressure component 2. The filter component 1 can filter the dust-containing flue gas in the centrifugal fan casing to prevent the dust-containing flue gas from entering the air to pollute the environment and endanger the health of the workers. The negative pressure component 2 discharges the air in the filter component 1 through the fan to create negative pressure, thereby sucking the dust-containing flue gas in the centrifugal fan casing into the filter component 1 for filtration.
[0036] Combine Figure 1 and Figure 2 The filter assembly 1 includes a base 11 and a filter box 12. The filter box 12 is vertically arranged at one end of the upper surface of the base 11. The filter box 12 is a hollow square cylinder with both ends closed. A square frame-shaped spray pipe 13 is provided in the upper part of the filter box 12. There are two spray pipes 13. The two spray pipes 13 are distributed in two inner and outer circles with the center line of the filter box 12 as the center. The two spray pipes 13 are arranged at intervals. A number of spray holes 131 are opened on the peripheral wall of the spray pipe 13. The spray holes 131 of the outer circle spray pipe 13 are inclined toward the barrel wall of the filter box 12, and the spray holes 131 of the inner circle spray pipe 13 are toward the bottom of the filter box 12. The inner and outer circles of the spray pipes 13 can spray the filtered water to filter the dust-laden flue gas and at the same time flush and collect the filtered dust.
[0037] Combine Figure 1 and Figure 2 A dust suction hole 121 is provided on the side wall of the filter box 12 adjacent to the end face of the base 11. The dust suction hole 121 connects the inside and outside of the filter box 12. The dust suction hole 121 is a circular hole. A connecting pipe 126 is provided at the dust suction hole 121 on the outer wall of the filter box 12. The connecting pipe 126 is used to connect the shaft end of the centrifugal fan, and can allow the dust and smoke in the casing of the centrifugal fan to enter the filter box 12 through the dust suction hole 121.
[0038] Combine Figure 1 and Figure 2 A first receiving groove 122 is provided on the outer wall of the filter box 12. The first receiving groove 122 is arranged below the dust suction hole 121. The length direction of the first receiving groove 122 is perpendicular to the length direction of the filter box 12. The filter assembly 1 also includes a first movable door 14. The first movable door 14 is adapted to and inserted into the first receiving groove 122. The length direction of the first movable door 14 is parallel to the length direction of the first receiving groove 122. After the first movable door 14 is completely located in the first receiving groove 122, it is flush with the outer wall of the filter box 12. One end of the first movable door 14 is hinged on the wall of the first receiving groove 122. The other end of the first movable door 14 can be locked in the first receiving groove 122 by a simple door lock 15.
[0039] Combine Figure 1 and Figure 4The simple door lock 15 is mounted on the outer surface of the first movable door 14, away from the hinge. It comprises a lock block 151, a lock box 153, a lock rod 154, and a spring. The square lock block 151 is fixed to the first movable door 14. A lock hole 152 is defined in the lock block 151, connecting the upper and lower surfaces of the lock block 151. The lock box 153 is fixed to the outer wall of the filter box 12. The lock box 153 has an upward-facing opening, and the lock block 151 can be inserted into the lock box 153.
[0040] Combine Figure 1 and Figure 4 The locking rod 154 is inserted upward into the lock box 153 and slidably arranged in the lock box 153. The locking rod 154 is adapted to the lock hole 152 and can be inserted into the lock hole 152. The upper end of the locking rod 154 is processed into an inclined surface, which faces away from the filter box 12. The other end of the locking rod 154 is processed to form an annular thickened portion on the peripheral wall. A square limit plate is fixedly connected to the peripheral wall of the locking rod 154 adjacent to the inclined surface. The square limit plate is adapted to the inner wall of the lock box 153 and slidably arranged in the lock box 153. The surface of the square limit plate is perpendicular to the length direction of the locking rod 154. A spring is fixedly arranged between the square limit plate and the bottom of the lock box 153. The spring is sleeved on the peripheral wall of the locking rod 154 and the two ends of the spring are respectively fixed to the square limit plate and the bottom of the lock box 153. In the static state, the upper surface of the square limit plate is flush with the surface of the box opening of the lock box 153.
[0041] Combine Figure 1 and Figure 2 A first placement hole 123 is provided at the bottom of the first accommodating groove 122, and the first placement hole 123 connects the inside of the filter box 12 and the bottom of the first accommodating groove 122. The length direction of the first placement hole 123 is parallel to the length direction of the first movable door 14, and the hole walls at both ends of the first placement hole 123 are flush with the inner wall of the filter box 12. Two layers of insertion grooves 124 are provided on the three side walls adjacent to and opposite to the first placement hole 123 in the filter box 12. The insertion grooves 124 are provided with openings at the bottom of the first accommodating groove 122, and two layers of filter plates 16 are provided in the filter box 12. The filter plates 16 are adapted to the insertion grooves 124 and the filter plates 16 are inserted in the insertion grooves 124. The surface of the filter plates 16 is perpendicular to the length direction of the filter box 12. The filter plates 16 can fully filter the filtered water containing dust, collect the dust in the filtered water, and make the filtered water reusable.
[0042] Combine Figure 1 and Figure 2The arrangement of the first movable door 14 and the first placement hole 123 facilitates the cleaning and replacement of the filter plate 16 that has been used for a long time. The two-layer filter plate 16 has a better filtering effect. When the first movable door 14 is open, it will not hinder the insertion of the filter plate 16 into the insertion groove 124. A sealing groove 125 is provided on the wall of the first placement hole 123. The sealing groove 125 has an opening at the bottom of the first receiving groove 122. A sealing plate 141 is provided on the surface of the first movable door 14 that is in contact with the bottom of the first receiving groove 122. The sealing plate 141 is adapted to the sealing groove 125 and inserted into the sealing groove 125. The sealing plate 141 can seal the first movable door 14.
[0043] Combine Figure 1 and Figure 2 The bottom of the filter box 12 is machined to form an inclined surface, which is inclined from the box body on the side with the dust suction hole 121 to the bottom of the barrel. The inclined surface facilitates the collection of filtered water for reuse. The filter assembly 1 also includes a water pump 17, which is arranged on the base 11 and is located at the other end of the upper surface of the base 11. The water pump 17 is connected to the side wall of the bottom of the filter box 12 through a square cone-shaped collection pipe 18. One end of the collection pipe 18 is connected to the inside of the filter box 12, and the other end is connected to the water pump 17. The water pump 17 is connected to the upper end of the filter box 12 through a circulating water pipe 19. One end of the circulating water pipe 19 is connected to the water pump 17, and the other end penetrates into the upper end of the filter box 12 and is respectively connected to the inner and outer circles of the spray pipe 13. The water pump 17 can pump the collected and reused filtered water into the spray pipe 13.
[0044] Combine Figure 1 and Figure 2 The negative pressure component 2 includes a fan 21, which is arranged above the water pump 17. The fan 21 is fixed to the base 11 through supporting legs. The fan 21 is connected to the filter box 12 through a negative pressure pipe 22. The negative pressure pipe 22 connects the filter box 12 and the fan 21. An air outlet 211 is provided on the surface of the fan 21 facing away from the filter box 12. The length direction of the negative pressure pipe 22 is perpendicular to the length direction of the filter box 12. The fan 21 can create a negative pressure environment in the filter box 12 through the negative pressure pipe 22, and suck the dust-laden flue gas from the centrifugal fan casing into the filter box 12 through the dust suction hole 121 for filtration, so as to prevent the dust-laden flue gas from escaping into the air and polluting the environment.
[0045] Combine Figure 1 and Figure 3A second accommodating groove 221 is provided on the side wall of the negative pressure tube 22, and the length direction of the second accommodating groove 221 is perpendicular to the length direction of the negative pressure tube 22. A second movable door 23 is provided on the negative pressure tube 22, and the second movable door 23 is adapted to the second accommodating groove 221 and inserted in the second accommodating groove 221. One side wall of the second movable door 23 is hinged on the wall of the second accommodating groove 221, and a handle is provided on the surface of the second movable door 23 facing away from the negative pressure tube 22, and the second movable door 23 is locked on the negative pressure tube 22 through the handle.
[0046] Combine Figure 1 and Figure 3 A second placement hole 222 is provided at the bottom of the second accommodating groove 221. The second placement hole 222 is a rectangular hole. The length direction of the second placement hole 222 is parallel to the length direction of the second accommodating groove 221. A placement groove 223 is provided on the three inner walls adjacent to and opposite to the second placement hole 222 in the negative pressure tube 22. The placement groove 223 is provided with an opening at the bottom of the second accommodating groove 221. An air filter plate 24 is provided in the negative pressure tube 22. The air filter plate 24 is adapted to and inserted into the placement groove 223. The surface of the air filter plate 24 is perpendicular to the length direction of the negative pressure tube 22. The air filter plate 24 can further filter the dust-containing flue gas filtered in the filter box 12, fully remove the dust in the dust-containing flue gas, and prevent the dust-containing flue gas from entering the air and polluting the environment.
[0047] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.
Claims
1. A negative pressure dust collection device, characterized in that: The dust collecting device comprises a base (11), a filter box (12), a water pump (17) and a fan (21), wherein the filter box (12) and the water pump (17) are arranged at both ends of the upper surface of the base (11), the filter box (12) is arranged vertically, and a dust collecting hole (121) is opened on the side wall of the filter box (12), and the fan (21) is arranged above the water pump (17) through a supporting leg, and the fan (21) is connected to the upper part of the filter box (12) through a negative pressure pipe (22). A second receiving groove (221) is provided on the outer wall of the pressure tube (22), a second placement hole (222) is provided at the bottom of the second receiving groove (221), a placement groove (223) is provided on the inner wall of the negative pressure tube (22), the placement groove (223) is provided with an opening at the bottom of the second receiving groove (221), an air filter plate (24) is provided in the negative pressure tube (22), and the air filter plate (24) is inserted into the placement groove (223) through the second placement hole (222).
2. A negative pressure dust collection device according to claim 1, characterized in that: The water pump (17) is connected to the lower part of the filter box (12) through a collecting pipe (18), and the water pump (17) is connected to the upper part of the filter box (12) through a circulating water pipe (19). A square frame-shaped spray pipe (13) is suspended in the upper part of the filter box (12). The spray pipe (13) is connected to the end of the circulating water pipe (19) that penetrates the upper end of the filter box (12). Spray holes (131) are opened on the peripheral wall of the spray pipe (13).
3. A negative pressure dust collection device according to claim 2, characterized in that: Two spray pipes (13) are provided, and the two spray pipes (13) are spaced apart in an inner and outer circle around the center line of the filter box (12), the spray holes (131) of the outer circle spray pipe (13) face the inner wall of the filter box (12), and the spray holes (131) of the inner circle spray pipe (13) face the bottom of the filter box (12).
4. The negative pressure dust collection device according to claim 3, characterized in that: Two layers of filter plates (16) are arranged in the filter box (12), the surfaces of the two layers of filter plates (16) are parallel to each other and spaced apart, and the surfaces of the filter plates (16) are perpendicular to the length direction of the filter box (12).
5. The negative pressure dust collection device according to claim 4, characterized in that: The side wall of the filter box (12) is provided with a first receiving groove (122), a first movable door (14) is provided in the first receiving groove (122), a first placement hole (123) is provided at the bottom of the first receiving groove (122), an insertion groove (124) is provided on the inner wall of the filter box (12), the insertion groove (124) is provided with an opening at the bottom of the first receiving groove (122), and the filter plate (16) is inserted into the insertion groove (124).
6. The negative pressure dust collection device according to claim 5, characterized in that: A sealing groove (125) is provided on the wall of the first placement hole (123), and an opening is provided on the bottom of the first receiving groove (122). A sealing plate (141) is provided on the surface of the first movable door (14) that is in contact with the first receiving groove (122), and the sealing plate (141) is inserted into the sealing groove (125).
7. The negative pressure dust collection device according to claim 6, characterized in that: The first movable door (14) is locked in the first receiving groove (122) by a simple door lock (15). The simple door lock (15) includes a lock block (151), a lock box (153) and a lock rod (154). The lock block (151) is fixed to the first movable door (14). The side wall of the lock box (153) is fixed to the peripheral wall of the filter box (12). A lock hole (152) is provided on the lock block (151). The lock rod (154) penetrates the lock box (153) and is slidably arranged in the lock box (153). One end of the lock rod (154) can be inserted into the lock hole (152).
8. The negative pressure dust collection device according to claim 7, characterized in that: The end surface of the locking rod (154) inserted into the locking hole (152) is processed to form an inclined surface.
9. The negative pressure dust collection device according to claim 5, characterized in that: The bottom of the filter box (12) is processed to form an inclined surface.