Simple, efficient and energy-saving dust remover inlet off-line valve

Abstract

The utility model provides a simple, efficient and energy-saving inlet off-line valve of a dust remover, which relates to the technical field of dust removers and comprises a dust remover with two or more than two box bodies, a middle box body arranged at the middle section of the dust remover and an inlet and outlet header pipe, a cloth bag is arranged in the middle box body, and an upper box body is arranged at the top of the dust remover. An inlet offline valve is arranged at the bottom of the air inlet and comprises a valve plate a, a fixing seat, an air cylinder b, a connecting rod and a transmission shaft. According to the dust remover, the cloth bag can be subjected to blowing treatment through the pulse blowing assembly, dust adhering to the outside of the cloth bag is cleaned and falls off, the situation that the dust which is blown and vibrated off is adsorbed to the cloth bag again due to the suction force effect of a suction fan is avoided, then the running resistance of a dust removal system is reduced, power consumption is reduced, the valve plate a can be driven to be opened and closed externally, and the dust removal efficiency is improved. The opening angle of the valve plate a is controlled, so that air inlet resistance in the air inlet is prevented from being increased, dust accumulation in the air inlet is prevented, and the whole dust removal system is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a simple, efficient and energy-saving dust collector inlet offline valve. Background Art

[0002] A dust collector is a dust removal device that processes dusty smoke gases. It is mainly used to purify gases in industrial production processes and remove dust particles to meet environmental protection and process requirements. Its working principle is mainly to use physical or chemical methods to pass dusty smoke gases through filter elements (usually cloth bags) so that dust particles are intercepted and remain on the cloth bags, thereby achieving gas purification.

[0003] However, the existing simple, efficient and energy-saving dust collector inlet offline valve still has the following defects and shortcomings in actual use:

[0004] 1. When the existing dust collector is in use, the dust-containing smoke gas enters the middle box from the inlet and outlet main pipes, and is discharged into the ash hopper through the air inlet. Since the dust-containing smoke gas is discharged upward into the bag, the dust particles in the gas are filtered and purified by the bag. After the bag is used for a long time, dust will adhere to the outside of the bag. However, there is no structure for cleaning the bag inside the dust collector. When the purified gas in the bag is extracted by the suction fan, the dust outside the bag falls during the vibration under the suction force of the suction fan. It will be sucked back onto the bag by the suction force, resulting in a large amount of electricity consumption for dust removal, which increases the electricity cost of dust removal.

[0005] Regarding the structure of the outlet offline valve, most manufacturers' designs use a lifting valve to control the outlet of the upper box, and for the inlet offline valve, an offline valve is set at the lower part of the middle box to control the flue gas entering the ash hopper through the offline valve. This structure is relatively complicated, and most of them use a 90-degree elbow before entering the ash hopper. This not only increases the internal system resistance of the dust collector, but also has the possibility of dust accumulation. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a simple, efficient and energy-saving dust collector inlet offline valve, which can spray the bags through a pulse spraying component to make the dust adhering to the outside of the bags fall off easily, avoiding the dust vibrated off by the spraying to be re-adsorbed onto the bags due to the suction force of the suction fan, thereby reducing the running resistance of the dust removal system and the loss of electricity, and the valve plate a in the inlet offline valve can be driven to open and close externally, and the opening angle of the valve plate a can also be controlled to avoid increasing the air intake resistance at the air inlet, thereby preventing dust accumulation at the air inlet. Compared with the traditional dust collector, the entire dust removal system will not be blocked, and the structure of the inlet offline valve is that except for the valve plate a and the transmission shaft which are inside the ash hopper, the other structures are all outside the ash hopper, which is convenient for inspection and replacement.

[0007] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0008] A simple, efficient and energy-saving dust collector inlet offline valve comprises: a dust collector with two or more boxes, a middle box and an inlet and outlet main pipe arranged in the middle section of the dust collector, a cloth bag is arranged inside the middle box, an upper box is installed on the top of the dust collector, an air inlet is opened at the bottom of the inlet and outlet main pipe, an inlet offline valve is arranged at the bottom of the air inlet, and the inlet offline valve comprises: a valve plate a, a fixing seat, a cylinder b, a connecting rod and a transmission shaft, and a pulse spray assembly arranged inside the upper box is used to clean the dust adhering to the outside of the cloth bag.

[0009] Preferably, the pulse spray assembly includes: a spray pipe arranged on one side of the interior of the upper box body, a plurality of nozzles facing the cloth bag are installed at the bottom of the spray pipe, a connecting block is installed at one end of the spray pipe, a fixing block fixedly connected to the connecting block is provided inside the upper box body, an air supply pipe is installed at the other end of the spray pipe, and one end of the air supply pipe passes through the outside of the upper box body, and an air bag is installed at the top end of the air supply pipe.

[0010] Preferably, an ash hopper is provided at the bottom of the dust collector, a fixed seat is installed at the outer end of the ash hopper, the top of the fixed seat is rotatably connected to a cylinder b, the top of the cylinder b is rotatably connected to a connecting rod, a transmission shaft is installed in the middle part of the valve plate a, both ends of the transmission shaft pass through the outside of the ash hopper, one end of the transmission shaft is rotatably connected to the connecting rod, and a bearing seat rotatably connected to the other end of the transmission shaft is installed at the outer end of the ash hopper.

[0011] Preferably, an exhaust port is provided between the middle box body and the upper box body, an air outlet main pipe communicating with the middle box body is installed in the middle of the other end of the dust collector, an induced draft fan is installed outside the air outlet main pipe, an air outlet is provided at the outer end of the air outlet main pipe, and the air outlet is connected to the induced draft fan.

[0012] Preferably, an outlet offline valve is provided on the top of the upper box body, and the outlet offline valve includes: a cylinder seat, a cylinder a and a valve plate b. The cylinder seat is fixedly installed on one side of the top of the upper box body, and the cylinder a is fixedly installed on the top of the cylinder seat, and the piston rod of the cylinder a passes through the inside of the cylinder seat. A valve plate b fixedly connected to the piston rod is provided on the top of the exhaust port.

[0013] Preferably, an ash discharge valve is installed at the bottom of the ash hopper, an upper flange is fixedly installed on the top of the ash discharge valve, and a lower flange is fixedly installed on the bottom of the ash discharge valve.

[0014] Preferably, a scraper is provided at the bottom of the ash discharge valve, the scraper is composed of a scraper, a motor and a casing, and a flange connected to the lower flange is provided at the top of the ash discharge valve.

[0015] The beneficial effects of the utility model are:

[0016] (1) The dust collector inlet offline valve can control the flue gas entering the bag in the middle box. After the dust collector has been running for a period of time and a certain thickness of dust has been deposited on the outer surface of the bag, the dust collector inlet and outlet offline valves are closed, and then the bag is sprayed with a pulse spray component, so that the dust adhering to the outside of the bag is easy to fall off, avoiding the dust that is blown off by the suction force of the suction fan to be re-adsorbed on the bag, thereby reducing the operating resistance of the dust removal system and reducing the loss of electricity, thereby achieving the purpose of saving electricity and energy.

[0017] (2) The valve plate a in the imported offline valve can be driven to switch externally, and the opening angle of the valve plate a can be controlled to avoid increasing the intake resistance at the air inlet, thereby preventing dust accumulation at the air inlet. Compared with the traditional dust collector, the entire dust removal system will not be blocked, achieving the purpose of low resistance, high efficiency and easy use of dust removal. In addition, the structure of the imported offline valve is that except for the valve plate a and the drive shaft inside the ash hopper, the other structures are outside the ash hopper, which is convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic side cross-sectional view of the entire utility model.

[0020] Figure 3 It is a front view cross-sectional schematic diagram of the dust collector of the present utility model.

[0021] Figure 4 For the utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0022] Figure 5 This is a schematic diagram of the connection between the cylinder b, connecting rod, transmission shaft and valve plate a of the utility model.

[0023] Figure 6 For the utility model Figure 1 Enlarged structural diagram at B in the middle.

[0024] Figure 1-Figure 6Middle: 1. dust collector; 101. bag; 102. middle box; 103. air inlet; 104. valve plate a; 105. upper box; 2. ash hopper; 3. inlet and outlet main pipes; 4. outlet main pipe; 5. exhaust port; 501. outlet port; 503. cylinder seat; 504. cylinder a; 505. valve plate b; 6. injection pipe; 601. nozzle; 602. connecting block; 603. fixing block; 604. air pipe; 605. air bag; 7. fixing seat; 701. cylinder b; 702. connecting rod; 8. transmission shaft; 9. ash discharge valve; 901. upper flange; 902. lower flange; 10. scraper; 1011. flange. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0026] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Example 1

[0028] like Figure 1-Figure 6 As shown, a simple, efficient and energy-saving dust collector inlet offline valve comprises: a dust collector 1 with two or more boxes, a middle box 102 and an inlet and outlet main pipe 3 arranged in the middle section of the dust collector 1, a bag 101 is arranged inside the middle box 102, an upper box 105 is installed on the top of the dust collector 1, an air inlet 103 is opened at the bottom of the inlet and outlet main pipe 3, an inlet offline valve is arranged at the bottom of the air inlet 103, and the inlet offline valve comprises: a valve plate a104, a fixing seat 7, a cylinder b701, a connecting rod 702 and a transmission shaft 8, and a pulse spraying component arranged inside the upper box 105 is used to clean the dust adhering to the outside of the bag 101.

[0029] Among them, reference Figure 1-Figure 3 An exhaust port 5 is provided between the middle box body 102 and the upper box body 105. An air outlet main pipe 4 communicating with the middle box body 102 is installed in the middle of the other end of the dust collector 1. An induced draft fan is installed outside the air outlet main pipe 4. An air outlet 501 is provided at the outer end of the air outlet main pipe 4, and the air outlet 501 is connected to the induced draft fan.

[0030] When the dusty smoke is treated, the valve plate a104 is opened, and the dusty smoke enters the air inlet 103 from the inlet and outlet main pipe 3 and is discharged into the ash hopper 2. As the dusty smoke is discharged upward into the bag 101, the cross-sectional area of ​​the multiple bags 101 inside the middle box 102 is expanded, so that the air flow speed is rapidly reduced, and some large particles of dust are separated and fall into the ash hopper 2 due to the inertial force. Under the action of the suction force of the suction fan, the dusty smoke enters the air outlet main pipe 4, the exhaust port 5, and the upper box 10 5 and the inside of the bag 101 are exhausted, so that the airflow flows from the outside of the bag 101 to the inside, and the dust-containing gas is filtered and purified by the bag 101, and the dust is retained on the outer surface of the bag 101. Since the valve plate b505 at the top of the exhaust port 5 is opened, the purified gas enters the upper box body 105 through the bag 101, and then enters the air outlet main pipe 4 through the exhaust port 5, and is then sucked out by the suction fan to the air outlet 501 and the chimney for discharge, thereby completing the filtering and purification of the dust-containing smoke gas.

[0031] Among them, reference Figure 2-Figure 3 An outlet offline valve is provided on the top of the upper box body 105, and the outlet offline valve includes: a cylinder seat 503, a cylinder a504 and a valve plate b505. The cylinder seat 503 is fixedly installed on one side of the top of the upper box body 105, and the cylinder a504 is fixedly installed on the top of the cylinder seat 503, and the piston rod of the cylinder a504 runs through the interior of the upper box body 105, and a valve plate b505 fixedly connected to the piston rod is provided on the top of the exhaust port 5.

[0032] When the dust-containing smoke is filtered and purified inside the bag 101, start the cylinder a504, and the cylinder a504 drives the piston rod to move upward, that is, the piston rod drives the valve plate b505 to move upward from the top of the exhaust port 5, releases the seal of the exhaust port 5, and opens the exhaust port 5, so that the main air outlet pipe 4, the exhaust port 5, the upper box body 105 and the bag 101 are connected, and the purified gas can be discharged to the outside of the dust collector 1.

[0033] Among them, reference Figure 1 , Figure 2 and Figure 4 A ash hopper 2 is provided at the bottom of the dust collector 1, a fixed seat 7 is installed at the outer end of the ash hopper 2, the top of the fixed seat 7 is rotatably connected to the cylinder b701, the top of the cylinder b701 is rotatably connected to the connecting rod 702, a transmission shaft 8 is installed in the middle part of the valve plate a104, both ends of the transmission shaft 8 pass through the outside of the ash hopper 2, one end of the transmission shaft 8 is rotatably connected to the connecting rod 702, and a bearing seat rotatably connected to the other end of the transmission shaft 8 is installed at the outer end of the ash hopper 2.

[0034] When the valve plate a104 is in use, the valve plate a104 is located at the bottom of the air inlet 103, and the two ends of the transmission shaft 8 in the middle of the valve plate a104 pass through the outside of the ash hopper 2. Since one end of the transmission shaft 8 is rotatably connected to the connecting rod 702, the connecting rod 702, the cylinder b701 and the fixed seat 7 form a driving whole at the outer end of the ash hopper 2, and the outer end of the ash hopper 2 is equipped with a bearing seat rotatably connected to the other end of the transmission shaft 8. The other end of the transmission shaft 8 is limited and placed by the bearing seat, so that the force on both sides of the valve plate a104 is balanced, and it can be stably placed at the bottom of the air inlet 103. When the dust-containing smoke gas is discharged into the bag 101 for filtration, the cylinder b701 is started to push the connecting rod 702, that is, The connecting rod 702 pushes the transmission shaft 8 to rotate, driving the valve plate a104 to flip and open. At this time, the valve plate a104 changes from a horizontal position to a vertical position, releasing the seal on the air inlet 103, so that the dust-containing smoke gas entering the middle box 102 can be discharged into the ash hopper 2 from the air inlet 103, and then the dust-containing smoke gas is discharged upward in the ash hopper 2 to the inside of the bag 101. This method can drive the valve plate a104 switch externally, and can also control the opening angle of the valve plate a, so as to avoid increasing the air intake resistance at the air inlet, thereby preventing dust accumulation at the air inlet. Compared with traditional dust collectors, the entire dust removal system will not be blocked, thereby achieving the purpose of low-resistance, high-efficiency and easy-to-use dust removal.

[0035] The structure of the imported offline valve is that except for the valve plate a and the transmission shaft which are inside the ash hopper, the connecting rod 702, the cylinder b701, the fixed seat 7 and the bearing seat are all outside the ash hopper 2, which is convenient for maintenance and replacement, and the valve plate b505 and the valve plate a104 can be opened and closed offline in the exhaust port 5 and the air inlet 103. When the valve plate b505 and the valve plate a104 are closed at the exhaust port 5 and the air inlet 103, the dust-containing fume gas enters the bag 101 to filter the dust, and the dust removal operation of the dust collector 1 on the dust-containing fume gas is not affected, and the valve plate b505 and the valve plate a104 can be opened and closed separately to achieve the purpose of separate offline maintenance.

[0036] Example 2

[0037] Based on Example 1, Figure 1-Figure 2 The pulse spray assembly includes: a spray pipe 6 arranged on one side of the upper box body 105, a plurality of nozzles 601 facing the cloth bag 101 are installed at the bottom of the spray pipe 6, a connecting block 602 is installed at one end of the spray pipe 6, a fixing block 603 fixedly connected to the connecting block 602 is provided inside the upper box body 105, an air supply pipe 604 is installed at the other end of the spray pipe 6, and one end of the air supply pipe 604 passes through the outside of the upper box body 105, and an air bag 605 is installed at the top of the air supply pipe 604.

[0038] When the blowing pipe 6 is in use, the blowing pipe 6 is connected and fixed to the fixing block 603 inside the upper box 105 through the connecting block 602, and the other end is fixedly installed together with the gas pipe 604, so that the blowing pipe 6 is stably installed inside the upper box 105 for use. The nozzles 601 at the bottom of the blowing pipe 6 are all set toward the bag 101. After the bag 101 has finished filtering and purifying the dust-containing fume gas, since a blower is installed in the air bag 605, the blower is started to work, and the blower blows to the gas pipe 604. 4 generates blowing air inside and is discharged into the blowing pipe 6, and is sprayed on the bag 101 through the nozzle 601, so that the dust adhering to the outside of the bag 101 is easy to fall off, and the dust falls into the ash hopper 2 in a free-falling state for collection, which is convenient for cleaning the dust outside the bag 101, and avoids the dust that is blown off and re-adsorbed on the bag 101 due to the suction force of the suction fan, thereby reducing the running resistance of the dust removal system, reducing the loss of electricity, and achieving the purpose of saving electricity and energy.

[0039] Among them, reference Figure 1 , Figure 2 and Figure 5 A ash discharge valve 9 is installed at the bottom of the ash hopper 2, an upper flange 901 is fixedly installed on the top of the ash discharge valve 9, and a lower flange 902 is fixedly installed at the bottom of the ash discharge valve 9. After the dust dropped by the cloth bag 101 is collected inside the ash hopper 2, the ash discharge valve 9 is started to open to discharge and clean the collected dust inside the ash hopper 2.

[0040] Among them, reference Figure 1 , Figure 2 and Figure 5 A scraper machine 10 is provided at the bottom of the ash unloading valve 9. The scraper machine 10 is composed of a scraper, a motor and a casing. A flange 1011 connected to the lower flange 902 is provided on the top of the ash unloading valve 9. During the use of the ash unloading valve 9, when it is found that the ash unloading valve 9 is blocked, the scraper machine 10 is installed at the bottom of the ash unloading valve 9, and the scraper in the scraper machine 10 is inserted into the inner wall of the ash unloading valve 9 and fits well. Since the scraper is connected to the motor shaft of the motor, the motor is started to drive the motor shaft to drive the scraper to rotate, which is convenient for cleaning the dust adhered to the inner wall of the ash unloading valve 9 to prevent the ash unloading valve 9 from being blocked. After cleaning, it can be disassembled.

[0041] The dust collector 1, cylinder a504, blower, induced draft fan, cylinder b701, ash discharge valve 9 and scraper 10 are all powered by external power when in use. A control chassis is installed on the outside of the dust collector 1, and the cylinder a504, blower, induced draft fan, cylinder b701 and ash discharge valve 9 can be started and shut down by the control chassis. A switch for controlling the motor is provided on the outside of the scraper 10 to control the start and shut down of the motor. The control procedures involved in the utility model can be implemented by those skilled in the art according to the same or similar principles in the prior art, and this part is not the innovation of the utility model.

[0042] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] The above is a detailed introduction to a simple, efficient and energy-saving dust collector inlet offline valve provided in an embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A simple, efficient and energy-saving dust collector inlet offline valve, characterized in that: include: Dust collector (1) with two or more boxes; A middle box (102) and an inlet and outlet main pipe (3) are arranged in the middle section of the dust collector (1), a bag (101) is arranged inside the middle box (102), and an upper box (105) is installed on the top of the dust collector (1); An air inlet (103) is provided at the bottom of the inlet and outlet main pipe (3), and an inlet offline valve is provided at the bottom of the air inlet (103). The inlet offline valve comprises: a valve plate a (104), a fixing seat (7), a cylinder b (701), a connecting rod (702), and a transmission shaft (8); The pulse spray assembly arranged inside the upper box (105) is used to clean the dust adhering to the outside of the bag (101).

2. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 1 is characterized in that: The pulse jet assembly comprises: A blowing pipe (6) is arranged on one side of the interior of the upper box (105), and a plurality of nozzles (601) facing the cloth bag (101) are installed at the bottom of the blowing pipe (6); A connecting block (602) is installed at one end of the blowing pipe (6), and a fixing block (603) fixedly connected to the connecting block (602) is provided inside the upper box (105); An air delivery pipe (604) installed at the other end of the blowing pipe (6), and one end of the air delivery pipe (604) passes through the outside of the upper box (105); An air bag (605) is installed at the top end of the air delivery pipe (604).

3. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 1 is characterized in that: An ash hopper (2) is provided at the bottom of the dust collector (1), a fixed seat (7) is installed at the outer end of the ash hopper (2), the top of the fixed seat (7) is rotatably connected to a cylinder b (701), the top of the cylinder b (701) is rotatably connected to a connecting rod (702), a transmission shaft (8) is installed in the middle of the valve plate a (104), both ends of the transmission shaft (8) pass through the outside of the ash hopper (2), one end of the transmission shaft (8) is rotatably connected to the connecting rod (702), and a bearing seat rotatably connected to the other end of the transmission shaft (8) is installed at the outer end of the ash hopper (2).

4. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 1 is characterized in that: An exhaust port (5) is provided between the middle box body (102) and the upper box body (105); an air outlet main pipe (4) communicating with the middle box body (102) is installed at the middle of the other end of the dust collector (1); an induced draft fan is installed outside the air outlet main pipe (4); an air outlet (501) is provided at the outer end of the air outlet main pipe (4), and the air outlet (501) is connected to the induced draft fan.

5. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 4 is characterized in that: An outlet offline valve is provided at the top of the upper box body (105), and the outlet offline valve comprises: a cylinder seat (503), a cylinder a (504) and a valve plate b (505); the cylinder seat (503) is fixedly mounted on one side of the top of the upper box body (105); the cylinder a (504) is fixedly mounted on the top of the cylinder seat (503); the piston rod of the cylinder a (504) passes through the interior of the upper box body (105); and the valve plate b (505) fixedly connected to the piston rod is provided at the top of the exhaust port (5).

6. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 1 is characterized in that: An ash discharge valve (9) is installed at the bottom of the ash hopper (2), an upper flange (901) is fixedly installed at the top of the ash discharge valve (9), and a lower flange (902) is fixedly installed at the bottom of the ash discharge valve (9).

7. The simple, efficient and energy-saving dust collector inlet offline valve according to claim 6 is characterized in that: A scraper (10) is provided at the bottom of the ash discharge valve (9), wherein the scraper (10) is composed of a scraper, a motor and a casing, and a flange (1011) connected to the lower flange (902) is provided at the top of the ash discharge valve (9).

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