Device for collecting high-temperature gas dust entering coal mill

Abstract

The utility model relates to the technical field of dust removal equipment, and discloses a high-temperature gas dust collection device entering a coal mill. The high-temperature gas dust collecting device entering the coal mill comprises a collecting structure assembly, a cloth bag filtering assembly is installed in the collecting structure assembly, a fixing plate is installed at the upper end of the cloth bag filtering assembly, a connecting block is installed and connected to the upper end of the fixing plate, and a penetrating plate is installed at the upper end of the connecting block; the upper end of the cloth bag filtering assembly is connected and provided with the air injection cleaning assembly, the lower end of the air injection cleaning assembly is provided with a connecting plate, the lower end of the connecting plate is provided with an insertion mounting plate, the two sides of the insertion mounting plate are provided with one-way air injection pipes, and the one-way air injection pipes are internally provided with two-way air injection pipes; the dust removal device has the advantages that the dust removal efficiency of the dust removal device is not high due to the fact that dust in the dust removal device is too much after long-time use when the dust removal device is used for removing dust from high-temperature dust-containing gas, and the technical problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a dust collection device for high-temperature gas entering a coal mill. Background Art

[0002] Coal is needed in cement manufacturing. The existing coal mill dust collection systems all use cyclone dust collectors to remove dust from high-temperature dusty gases. The high-temperature dusty gases are led from the hot air duct at the outlet of the high-temperature fan at the tail end of the cement kiln to the cyclone dust collector through the pipe. After dust removal by the cyclone dust collector, the high-temperature dusty gases finally enter the coal mill.

[0003] The existing Chinese utility model patent with reference announcement number CN208927798U discloses a dust collection device for high-temperature gas entering a coal mill, including a dust collecting box, an ash hopper, a high-temperature fan duct and an exhaust duct. A high-temperature fan duct is provided on the left side of the dust collecting box, and the right end of the high-temperature fan duct is connected to the opening below the left side wall of the dust collecting box through a metal expansion joint. A filtering device is provided inside the dust collecting box, an electromagnetic pulse valve is installed on the left end of the jet pipe, and an air bag is fixedly connected to the left side wall of the dust collecting box. The high-temperature dust-containing gas enters the dust collecting box through the high-temperature fan duct, and the temperature sensor is used to monitor the gas temperature in real time. When the temperature exceeds the preset value, the PLC controller opens the cold air butterfly valve, controls the water supply of the water supply system, allows cold air and cooling water to enter the high-temperature fan duct, cools the high-temperature dust-containing gas, and prevents the device from being damaged. The dust contained in the gas is filtered by the filtering device, and most of the dust in the high-temperature dust-containing gas can be removed, with good dust removal effect and high dust removal efficiency.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it is found that the high-temperature gas entering the coal mill needs to be dusted. The high-temperature dust-containing gas is dusted by a dust collector. Long-term use will lead to excessive dust inside the dust removal device, resulting in low dust removal efficiency of the dust removal device. After long-term use, the internal dust removal bag needs to be replaced. The traditional dust removal device directly replaces the entire device, resulting in a certain waste of resources. The existence of these problems affects the use of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a dust collection device for high-temperature gas entering a coal mill, which has the advantages of effectively preventing the high-temperature dust-containing gas from being dedusted by the dust collector, which would lead to excessive dust inside the dust removal device after long-term use, resulting in low dust removal efficiency of the dust removal device, and thus solves the above-mentioned technical problems.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for collecting dust from high-temperature gas entering a coal mill, comprising a collection structure assembly, a bag filter assembly for filtering dust from the high-temperature gas is installed inside the collection structure assembly, and an air jet cleaning assembly for cleaning dust from the upper end of the dust bag is installed on the upper end of the bag filter assembly;

[0009] A fixing plate is installed at the upper end of the bag filter assembly, and a connecting block is installed and connected to the upper end of the fixing plate, and an interlacing plate is installed at the upper end of the connecting block. The connecting block and the interlacing plate are combined to facilitate the rapid installation and disassembly of the dust removal bag at the lower end;

[0010] A connecting plate is installed at the lower end of the jet cleaning assembly, an interlaced mounting plate is installed at the lower end of the connecting plate, and one-way jet tubes are installed on both sides of the interlaced mounting plate, and a two-way jet tube is installed inside the one-way jet tube. The one-way jet tube and the two-way jet tube facilitate cleaning the dust on the upper end of the dust bag.

[0011] As the preferred technical solution of the utility model, a collection box is installed on the upper end of the collection structure assembly, and a storage box is installed on the lower end of the collection box, an air inlet is installed on the left side of the collection box, and a fan is installed inside the air inlet, and an air outlet is installed on the right side of the collection box, and the air outlet discharges the dust-filtered air.

[0012] As a preferred technical solution of the utility model, a dust removal bag is installed at the upper end of the bag filter assembly, and a structural frame is installed inside the dust removal bag, and the structural frame facilitates the installation of the dust removal bag at the outer end.

[0013] As a preferred technical solution of the utility model, a pressure gas pump is installed at the upper end of the jet cleaning assembly, and the pressure gas pump is convenient for generating pressure gas.

[0014] As a preferred technical solution of the utility model, the bag filter assembly is installed inside the collection box in the collection structure assembly, and the jet cleaning assembly is installed on the upper end of the insertion plate in the bag filter assembly.

[0015] As a preferred technical solution of the present utility model, the storage box is a conical structure, and the air inlet and the air outlet have the same structure.

[0016] As a preferred technical solution of the utility model, the connecting block is a disassembly structure, and the connecting block is a cross structure, and the connecting block is inserted and connected inside the insertion plate.

[0017] As a preferred technical solution of the utility model, the one-way jet pipe is an inwardly inclined structure, the lower end of the two-way jet pipe is a herringbone structure, the number of the one-way jet pipes is two, and the number of the two-way jet pipes is three.

[0018] Compared with the prior art, the utility model provides a high-temperature gas dust collection device for coal mill, which has the following beneficial effects:

[0019] 1. The utility model sets a bag filter assembly, in which a pressure gas pump is installed. Pressure gas is generated by the pressure gas pump. A connecting plate is installed at the lower end. The pressure gas is transmitted to the jet pipe at the lower end through the connecting plate. The jet pipe is divided into a one-way jet pipe and a two-way jet pipe. The dust on both sides of the bag is sprayed off by the jet pipe. This structure facilitates cleaning of the upper end of the bag, effectively preventing the need for dust removal of the high-temperature gas entering the coal mill. The high-temperature dust-containing gas is dedusted by the dust collector. Long-term use leads to excessive dust inside the dust removal device, resulting in low dust removal efficiency of the dust removal device.

[0020] 2. The utility model sets up a bag filter assembly, in which a structural frame is installed. The structural frame is convenient for connecting the dust bag at the upper end. A fixing plate is installed on the upper end of the structural frame, and the connecting frame at the upper end is connected through the fixing plate. The connecting block drives the lower end structure to be connected to the inside of the insertion plate. The insertion structure facilitates the rapid replacement and installation of the dust bag at the lower end, which effectively prevents the need to replace the internal dust bag after long-term use. The traditional dust removal device directly replaces the entire device, resulting in a certain waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 Collect the schematic diagram of the structural components for the utility model structure;

[0023] Figure 3 This is a schematic diagram of the structural bag filter assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the jet cleaning component of the utility model structure;

[0025] Among them: 1. Collection structure assembly; 101. Collection box; 102. Storage box; 103. Air inlet; 104. Fan; 105. Air outlet; 2. Bag filter assembly; 201. Dust bag; 202. Structural frame; 203. Fixing plate; 204. Connecting block; 205. Inserting plate; 3. Jet cleaning assembly; 301. Pressure gas pump; 302. Connecting plate; 303. Inserting mounting plate; 304. One-way jet pipe; 305. Two-way jet pipe. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 - Figure 4 In the present embodiment, a device for collecting dust from high-temperature gas entering a coal mill comprises: a collecting structure component 1, a bag filter component 2 is installed inside the collecting structure component 1, a fixing plate 203 is installed on the upper end of the bag filter component 2, and a connecting block 204 is installed and connected to the upper end of the fixing plate 203, an interlaced plate 205 is installed on the upper end of the connecting block 204, a jet cleaning component 3 is connected and installed on the upper end of the bag filter component 2, a connecting plate 302 is installed on the lower end of the jet cleaning component 3, an interlaced mounting plate 303 is installed on the lower end of the connecting plate 302, and one-way jet pipes 304 are installed on both sides of the interlaced mounting plate 303, a two-way jet pipe 305 is installed inside the one-way jet pipe 304, the bag filter component 2 is installed inside the collecting box 101 in the collecting structure component 1, and the jet cleaning component 3 is installed on the upper end of the interlaced plate 205 in the bag filter component 2.

[0030] Through the above structure; the collecting structure component 1 is convenient for installing the internal structure and for conveying the high-temperature gas, the bag filter component 2 is used to filter and adsorb the dust inside the high-temperature gas, and the jet cleaning component 3 is convenient for cleaning the dust on the upper end of the dust bag 201 to prevent the subsequent dust on the upper end of the dust bag 201 from affecting the overall dust removal effect.

[0031] See also Figure 1 - Figure 4 A collection box 101 is installed at the upper end of the collection structure component 1, and a storage box 102 is installed at the lower end of the collection box 101, an air inlet 103 is installed on the left side of the collection box 101, and a fan 104 is installed inside the air inlet 103, and an air outlet 105 is installed on the right side of the collection box 101. The storage box 102 is a conical structure, and the air inlet 103 and the air outlet 105 have the same structure.

[0032] Through the above structure: the collection box 101 is installed to facilitate the installation of internal components, the air inlet 103 is convenient for conveying high-temperature gas, the fan 104 is convenient for conveying high-temperature gas to the inside of the collection box 101, and the air outlet 105 discharges the dust-filtered air.

[0033] See also Figure 1 - Figure 4 A dust bag 201 is installed at the upper end of the bag filter assembly 2, and a structural frame 202 is installed inside the dust bag 201. The connecting block 204 is a disassembly structure, and the connecting block 204 is a cross structure. The connecting block 204 is inserted and connected inside the inserting plate 205.

[0034] Through the above structure: by installing the dust bag 201, it is convenient to process the dust inside the high-temperature gas, the structural frame 202 is convenient to install the dust bag 201 at the outer end, the fixing plate 203 connects and installs the structural frame 202, and the connecting block 204 is combined with the insertion plate 205, which is convenient for quickly installing and disassembling the dust bag 201 at the lower end.

[0035] See also Figure 1 - Figure 4 A pressure gas pump 301 is installed at the upper end of the jet cleaning component 3, the unidirectional jet pipe 304 is an inwardly inclined structure, the lower end of the bidirectional jet pipe 305 is a herringbone structure, the number of unidirectional jet pipes 304 is two, and the number of bidirectional jet pipes 305 is three.

[0036] Through the above structure: by installing the pressure gas pump 301, it is convenient to generate pressure gas, the connecting plate 302 disperses the pressure gas, the interlaced installation plate 303 facilitates the installation of the lower end jet pipe, the one-way jet pipe 304 and the two-way jet pipe 305 facilitate cleaning the dust on the upper end of the dust bag 201.

[0037] When in use, first, start the fan 104 inside the air inlet 103, and transport the high-temperature gas through the fan 104, and transport the high-temperature gas to the collection box 101 through the air inlet 103. The collection box 101 is equipped with a dust bag 201. The high-temperature gas passes through the dust bag 201 through the transportation of the fan 104, and the dust inside the high-temperature gas is cleaned. The cleaned high-temperature gas is discharged through the air outlet 105 on the right side of the collection box 101. After the dust bag 201 has been used for a long time, a large amount of dust will exist on the upper end. At this time, the pressure gas pump 301 on the upper end of the device is started, and the pressure gas pump 301 transports the pressure gas. The pressurized gas is transported to the inside of the connecting plate 302, and the pressurized gas is transported to the jet pipe connected to the lower end of the lower interlaced mounting plate 303 through the connecting plate 302. The jet pipe is divided into a one-way jet pipe 304 and a two-way jet pipe 305. The dust on the upper end of the dust bag 201 is processed through the jet pipe, and the blown dust falls into the storage box 102 at the lower end. The dust bag 201 is damaged after long-term use and is replaced. The staff opens the collection box 101 and pulls the fixed plate 203. The fixed plate 203 is connected to the connecting block 204 at the upper end. The connecting block 204 slides inside the interlaced plate 205 to take out the dust bag 201 at the lower end for replacement.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for collecting dust from high temperature gas entering a coal mill, characterized in that: The invention comprises a collection structure component (1), wherein a bag filter component (2) is installed inside the collection structure component (1), a fixing plate (203) is installed on the upper end of the bag filter component (2), and a connecting block (204) is installed and connected to the upper end of the fixing plate (203), and an interpenetrating plate (205) is installed on the upper end of the connecting block (204), a jet cleaning component (3) is installed and connected to the upper end of the bag filter component (2), a connecting plate (302) is installed on the lower end of the jet cleaning component (3), an interpenetrating mounting plate (303) is installed on the lower end of the connecting plate (302), and one-way jet pipes (304) are installed on both sides of the interpenetrating mounting plate (303), and a two-way jet pipe (305) is installed inside the one-way jet pipe (304).

2. The device for collecting dust from high temperature gas entering a coal mill according to claim 1, characterized in that: A collection box (101) is installed at the upper end of the collection structure assembly (1), and a storage box (102) is installed at the lower end of the collection box (101); an air inlet (103) is installed on the left side of the collection box (101), and a fan (104) is installed inside the air inlet (103); and an air outlet (105) is installed on the right side of the collection box (101).

3. The device for collecting dust from high temperature gas entering a coal mill according to claim 1, characterized in that: A dust removal bag (201) is installed at the upper end of the bag filter assembly (2), and a structural frame (202) is installed inside the dust removal bag (201).

4. The device for collecting dust from high temperature gas entering a coal mill according to claim 1, characterized in that: A pressure gas pump (301) is installed at the upper end of the jet cleaning assembly (3).

5. The device for collecting dust from high temperature gas entering a coal mill according to claim 1, characterized in that: The bag filter assembly (2) is installed inside the collection box (101) in the collection structure assembly (1), and the jet cleaning assembly (3) is installed on the upper end of the insertion plate (205) in the bag filter assembly (2).

6. A coal mill high temperature gas dust collection device according to claim 2, characterized in that: The storage box (102) is a conical structure, and the air inlet (103) and the air outlet (105) have the same structure.

7. The device for collecting dust from high temperature gas entering a coal mill according to claim 3, characterized in that: The connection block (204) is a disassembly structure, and the connection block (204) is a cross structure, and the connection block (204) is inserted and connected inside the insertion plate (205).

8. The device for collecting dust from high temperature gas entering a coal mill according to claim 4, characterized in that: The one-way jet pipe (304) is an inwardly inclined structure, and the lower end of the two-way jet pipe (305) is a herringbone structure. The number of the one-way jet pipes (304) is two, and the number of the two-way jet pipes (305) is three.

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