Dust removal device for expanded perlite production

Abstract

The utility model discloses a dust removal device for expanded perlite production, which comprises an air suction pipe, the air suction pipe is used for being connected with a perlite sintering device and absorbing and guiding dust-containing airflow, a cooling cover is covered on the outer side of the air suction pipe, and a spiral guide plate is arranged between the cooling cover and the air suction pipe. A spiral flow guide cavity is formed among the spiral flow guide plate, the cooling cover and the air suction pipe, a liquid inlet pipe is arranged at one end of the spiral flow guide cavity, a liquid outlet pipe is arranged at the other end of the spiral flow guide cavity, an intercepting box is arranged at the tail end of the air suction pipe, an intercepting net plate is obliquely arranged on the intercepting box, a slag discharging box is arranged at the bottom end of the intercepting box, and a slag discharging structure is arranged in the slag discharging box. According to the expanded perlite dust removal device, waste heat generated during dust removal in the expanded perlite production process can be effectively utilized, perlite particulate matter in dust-containing airflow can be intercepted in advance, and abrasion of a follow-up dust removal cloth bag is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of expanded perlite production, and more particularly to a dust removal device for expanded perlite production. Background Art

[0002] Expanded perlite is a multi-purpose lightweight, porous, fireproof, thermal insulation and sound insulation material. Compared with traditional building materials, it has many advantages such as light weight, good thermal insulation performance, flame retardancy and environmental protection. Therefore, it is widely used in construction, electricity, chemical industry, transportation and other fields.

[0003] The raw materials of expanded perlite are a mixture of natural pearlite, gypsum, coal, zeolite and various other auxiliary materials. During the production process, the raw materials should be reasonably selected according to the quality and performance of the required product, and the necessary grading, mixing and processing should be carried out.

[0004] During the sintering process of expanded perlite, a lot of dust is generated. In the existing technology, this dust is directly transported to the bag dust collector for collection. However, the dust-laden exhaust gas generated during the sintering process has a high temperature. If it is directly transported to the inside of the bag dust collector, the high temperature will affect the service life of the dust collection bags inside the bag dust collector.

[0005] Moreover, the dust-laden airflow contains a large amount of large granular matter, and the existing technology cannot remove these granular lumps in advance. Therefore, when the bag dust collector is used for dust removal, these lumpy particles will collide with the surface of the dust bag under the impact force of the airflow and be intercepted by the dust bag. In this way, due to the large impact force of the lumpy particles, the dust bag is easily worn, which affects the service life of the dust bag. Utility Model Content

[0006] In response to the problems existing in the prior art, the utility model provides a dust removal device for expanded perlite production to solve the technical problems mentioned in the background technology that the dust removal device for expanded perlite production in the prior art cannot effectively utilize the heat in the dust-laden airflow when realizing the dust removal processing of the perlite dust-laden airflow, and cannot remove the perlite particulate matter in the dust-laden airflow in advance.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A dust removal device for expanded perlite production includes an air suction pipe, which is used to connect with a perlite sintering device to absorb and guide dust-laden airflow. The outer cover of the air suction pipe is provided with a cooling hood, a spiral guide plate is provided between the cooling hood and the air suction pipe, a spiral guide cavity is formed between the spiral guide plate, the cooling hood and the air suction pipe, a liquid inlet pipe is provided at one end of the spiral guide cavity, and a liquid outlet pipe is provided at the other end, an interception box is provided at the tail end of the air suction pipe, an interception mesh plate is provided at an angle, a slag discharge box is provided at the bottom end of the interception box, a slag discharge structure is provided in the slag discharge box, a conveying pipe is provided on the air outlet side of the interception box, and a bag dust collector is connected to the tail end of the conveying pipe.

[0009] The utility model is further configured such that a heat conducting plate is provided on the outer wall of the suction pipe, and the heat conducting plate is extended to the interior of the spiral guide cavity and a plurality of heat exchange fins are evenly provided. The heat in the dust-laden airflow transported by the suction pipe can be effectively conducted outwards through the heat conducting plate, and heat is exchanged with the cold water flowing in the spiral guide cavity through the heat exchange fins, thereby realizing effective utilization of heat.

[0010] The utility model is further configured such that a sealing cover is provided at the tail of the slag discharge box, and the sealing cover is driven to open and close by a cylinder structure.

[0011] The utility model is further configured as follows: the slag discharge structure includes a spiral discharge shaft rotatably installed in the slag discharge box through a bearing, a motor is provided on the outside of the slag discharge box, and the output end of the motor is transmission-connected to the spiral discharge shaft. The sealing cover is opened, the motor is started, and the spiral discharge shaft is controlled to rotate by the motor, so that the perlite granular material deposited and accumulated in the slag discharge box can be discharged outward for recycling.

[0012] The utility model is further configured as follows: a guide bucket is provided between the interception box and the slag discharge box, a connecting pipe is provided at the bottom end of the guide bucket connected to the slag discharge box, and a valve is provided on the connecting pipe. The dust intercepted in the interception box can be better guided toward the slag discharge box through the guide bucket. Under the action of the connecting pipe, the intercepted particles can enter the interior of the slag discharge box more stably and accurately for processing. In this process, the opening and closing of the connecting pipe is controlled by the valve. When the perlite particles in the slag discharge box need to be discharged outward, the valve is closed. When the slag discharge box is opened, it does not affect the circulation, interception and filtration of the gas above.

[0013] The utility model is further configured such that a mounting frame is provided in the interception box, the interception mesh plate is limitedly slidably mounted on the mounting frame, and a support spring is provided between the interception mesh plate and the mounting frame.

[0014] The utility model further sets up, install the sliding slot on the mounting bracket, install the plate is cooperated with setting up on the intercepting net board, install the slide is set up on the install plate, install the slide is located in the install sliding slot and is limited to slide, when big granule dust impacts intercepting net board, intercepting net board will produce movement under the action of support spring, thereby slow down impact force, in this process, the movement of intercepting net board will drive the movement of install plate, the movement of install slide in install sliding slot will be caused through the movement of install plate, the stable installation of intercepting net board in intercepting box can be realized through the mutual limit cooperation between install slide and install sliding slot, and the impact of particulate matter in dust-containing gas produced in the production process of expanded perlite can be reduced, and the service life is improved.

[0015] The utility model further sets up, the filter is set up on the inlet pipe, can filter the cooling water liquid in the spiral flow guide chamber, prevent the impurity in the water liquid and deposit inside the spiral flow guide chamber, influence the heat exchange effect condition.

[0016] The utility model can drive the flow of dust-containing airflow in cooperation with the fan in the use process, which is the prior known technology, and the utility model will not be described in detail.

[0017] Compared with the prior art, the utility model provides a dust removal device for expanded perlite production, which has the following beneficial effects:

[0018] 1、The utility model discloses a cooling cover and spiral flow guide plate that cooperate with each other are arranged on the outside of the air suction pipe, so that when dust is removed in the production process of expanded perlite, high-temperature dust-containing airflow enters the inside of the air suction pipe and is guided through the air suction pipe, in this process, cooling water is conveyed from the inlet pipe to the inside of the cooling cover and flows along the spiral flow guide cavity, in this process, the heat in the dust-containing airflow conveyed by the air suction pipe can be effectively conducted outwards through the heat conduction plate, and heat exchange is carried out between the heat exchange fins and the cooling water flowing in the spiral flow guide cavity, so that the dust-containing airflow in the inside of the air suction pipe can be cooled at the same time that the cooling water in the inside of the spiral flow guide cavity is heated, so that the heated water flow can be used for industrial and living needs, thereby realizing effective utilization of heat.

[0019] 2、The utility model discloses that the intercepting box and the intercepting net board that cooperate with each other are arranged at the tail end of the air suction pipe, and the intercepting net board is arranged obliquely in the inside of the intercepting box, so that the dust-containing airflow blown out through the air suction pipe blows out from below the intercepting net board and passes obliquely between the intercepting net board, so that the impact of the expanded perlite particulate matter in the dust-containing airflow on the intercepting net board can be reduced, the particulate matter can be intercepted, and the wear of the intercepting net board can be reduced.

[0020] 3. When large particles of dust impact the interception mesh plate, the interception mesh plate will move under the action of the supporting spring, thereby reducing the impact force. In this process, the movement of the interception mesh plate will drive the movement of the mounting plate, and the movement of the mounting plate will cause the mounting slide bar to move in the mounting slide groove. The mutual limiting cooperation between the mounting slide bar and the mounting slide groove can realize the stable installation of the interception mesh plate in the interception box, and can reduce the impact of particulate matter in the dust-laden gas generated by the expanded perlite during the production process, thereby improving the service life. After the interception box has initially intercepted the particulate matter in the dust-laden airflow, the dust-laden airflow will pass through the interception mesh plate and be transported to the bag dust collector through the conveying pipe for further dust removal operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a dust removal device for expanded perlite production in this utility model. Figure 1 ;

[0022] Figure 2 This is a cross-sectional view of the coordination structure between the air suction pipe, the cooling cover and the spiral guide plate in the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the internal structure of the interception box in the present invention;

[0024] Figure 4 It is a cross-sectional view of the cooperation structure between the mounting frame and the intercepting mesh plate in the present invention;

[0025] Figure 5 It is a schematic cross-sectional view of the internal structure of the slag discharge box in the utility model.

[0026] In the figure: 1. Suction pipe; 2. Cooling hood; 3. Spiral guide plate; 4. Spiral guide chamber; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Interceptor box; 8. Interceptor mesh plate; 9. Slag discharge box; 10. Conveying pipe; 11. Heat conduction plate; 12. Heat exchange fin; 13. Sealing cover; 14. Spiral discharge shaft; 15. Motor; 16. Guide bucket; 17. Connecting pipe; 18. Valve; 19. Mounting frame; 20. Support spring; 21. Mounting chute; 22. Mounting plate; 23. Mounting slide; 24. Filter; 25. Bag filter. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figures 1-5 , a dust removal device for expanded perlite production includes an air suction pipe 1, the air suction pipe 1 is used to be connected to the perlite sintering device to absorb and guide the dust-laden airflow, the outer cover of the air suction pipe 1 is provided with a cooling cover 2, a spiral guide plate 3 is provided between the cooling cover 2 and the air suction pipe 1, a spiral guide chamber 4 is formed between the spiral guide plate 3, the cooling cover 2 and the air suction pipe 1, one end of the spiral guide chamber 4 is provided with a liquid inlet pipe 5, and the other end is provided with a liquid outlet pipe 6. When dust is removed in the production process of expanded perlite, the high-temperature dust-laden airflow will enter the interior of the air suction pipe 1 and be guided through the air suction pipe 1. In this process, cooling water is transported from the liquid inlet pipe 5 to the interior of the cooling cover 2 and flows along the spiral guide chamber 4, so that heat exchange can be achieved, thereby improving the effective utilization of waste heat in the dust-laden airflow in the production process of expanded perlite;

[0031] The utility model is provided with a heat conducting plate 11 on the outer wall of the suction pipe 1, and the heat conducting plate 11 extends to the spiral guide cavity 4 and is evenly provided with a plurality of heat exchange fins 12. The heat conducting plate 11 can effectively conduct the heat in the dust-laden airflow transported by the suction pipe 1 to the outside, and the heat exchange fins 12 are used to exchange heat with the cold water flowing in the spiral guide cavity 4, thereby realizing effective utilization of heat. The heat conducting plate 11 and the heat exchange fins 12 are preferably made of aluminum or copper, which have good heat exchange and heat conduction effects.

[0032] The utility model is provided with an interception box 7 at the tail end of the suction pipe 1, and the interception box 7 is provided with an interception mesh plate 8 at an angle. The bottom end of the interception box 7 is provided with a slag discharge box 9, and a slag discharge structure is provided in the slag discharge box 9; a sealing cover 13 is provided at the tail end of the slag discharge box 9, and the sealing cover 13 is driven to open and close by a cylinder structure; wherein, the use of a cylinder to drive the sealing cover 13 to open and close is an existing well-known structure and technology, and the utility model will not be described in detail;

[0033] The utility model is provided with an interception box 7 and an interception mesh plate 8 that cooperate with each other at the tail end of the suction pipe 1, and the interception mesh plate 8 is obliquely arranged inside the interception box 7, so that the dust-laden airflow blown out through the suction pipe 1 will be blown out from under the interception mesh plate 8 and pass obliquely between the interception mesh plate 8, so that the impact of perlite particles in the dust-laden airflow on the interception mesh plate 8 can be reduced, and while the particle matter is intercepted, the wear of the interception mesh plate 8 can be reduced. In this way, the content of particles in the dust-laden airflow entering the bag filter will be reduced or eliminated, reducing the wear of the bag filter due to the impact of particles.

[0034] A delivery pipe 10 is provided on the air outlet side of the interception box 7, and a bag dust collector is connected to the tail end of the delivery pipe 10.

[0035] See also Figures 1-5 As an implementation method of the slag discharge structure: the slag discharge structure includes a spiral discharge shaft 14 rotatably installed in the slag discharge box 9 through a bearing, and a motor 15 is provided on the outside of the slag discharge box 9. The output end of the motor 15 is transmission-connected to the spiral discharge shaft 14. The sealing cover 13 is opened and the motor 15 is started. The spiral discharge shaft 14 is controlled to rotate by the motor 15, so that the perlite granular material deposited and accumulated in the slag discharge box 9 can be discharged outward for recycling.

[0036] See also Figures 1-5 As an implementation method of the interception box 7: a guide bucket 16 is provided between the interception box 7 and the slag box 9, and the bottom end of the guide bucket 16 is connected to the slag box 9 and is provided with a connecting pipe 17. A valve 18 is provided on the connecting pipe 17. The guide bucket 16 can better guide the dust intercepted in the interception box 7 toward the slag box 9. Under the action of the connecting pipe 17, the intercepted particles can enter the slag box 9 more stably and accurately for processing. In this process, the opening and closing of the connecting pipe 17 is controlled by the valve 18. When the perlite particles in the slag box 9 need to be discharged outward, the valve 18 is closed. When the slag box 9 is opened, it does not affect the circulation, interception and filtration of the gas above.

[0037] See also Figures 1-5 As an implementation method of the interception box 7: a mounting frame 19 is provided in the interception box 7, the interception mesh plate 8 is slidingly mounted on the mounting frame 19, and a support spring 20 is provided between the interception mesh plate 8 and the mounting frame 19.

[0038] See also Figures 1-5, as an implementation method of the mounting frame 19: an installation slot 21 is provided on the mounting frame 19, and a mounting plate 22 is provided on the intercepting mesh plate 8, and an installation slide 23 is provided on the mounting plate 22. The installation slide 23 is limited and slidably located in the installation slot 21. When large particles of dust impact the intercepting mesh plate 8, the intercepting mesh plate 8 will move under the action of the supporting spring 20, thereby reducing the impact force. In this process, the movement of the intercepting mesh plate 8 will drive the movement of the mounting plate 22, and the movement of the mounting plate 22 will enable the installation slide 23 to move in the installation slot 21. The mutual limiting cooperation between the installation slide 23 and the installation slot 21 can realize the stable installation of the intercepting mesh plate 8 in the interception box 7, and can reduce the impact of particulate matter in the dust-laden gas generated by the expanded perlite during the production process, thereby improving the service life.

[0039] See also Figures 1-5 As an implementation of the liquid inlet pipe 5: a filter 24 is provided on the liquid inlet pipe 5, which can filter the cooling water entering the spiral guide cavity 4 to prevent impurities in the water from being precipitated inside the spiral guide cavity 4 and affecting the heat exchange effect.

[0040] In summary:

[0041] When the utility model removes dust during the production process of expanded perlite, the high-temperature dust-laden airflow enters the interior of the suction pipe 1 and is guided through the suction pipe 1. During this process, the cooling water is transported from the liquid inlet pipe 5 to the interior of the cooling cover 2 and flows along the spiral guide cavity 4. During this process, the heat in the dust-laden airflow transported by the suction pipe 1 can be effectively conducted outwards through the heat conduction plate 11, and heat exchange is performed with the cold water flowing in the spiral guide cavity 4 through the heat exchange fins 12, so that the dust-laden airflow inside the suction pipe 1 can be cooled while the cooling water inside the spiral guide cavity 4 can be heated, so that the heated water can be used for industrial and life needs, thereby realizing effective use of heat.

[0042] The utility model is provided with an interception box 7 and an interception mesh plate 8 that cooperate with each other at the tail end of the suction pipe 1, and the interception mesh plate 8 is arranged obliquely inside the interception box 7. In this way, the dust-laden airflow blown out through the suction pipe 1 will be blown out from below the interception mesh plate 8 and pass obliquely between the interception mesh plate 8. In this way, the impact of perlite particles in the dust-laden airflow on the interception mesh plate 8 can be reduced, and the wear of the interception mesh plate 8 can be reduced while intercepting the particles.

[0043] When large particles of dust impact the interception mesh plate 8, the interception mesh plate 8 will move under the action of the support spring 20, thereby reducing the impact force. In this process, the movement of the interception mesh plate 8 will drive the movement of the mounting plate 22, and the movement of the mounting plate 22 will cause the mounting slide 23 to move in the mounting slide groove 21. The mutual limiting cooperation between the mounting slide 23 and the mounting slide groove 21 can achieve stable installation of the interception mesh plate 8 in the interception box 7, and can reduce the impact of particulate matter in the dust-laden gas generated during the production process of expanded perlite, thereby improving its service life. After the interception box 7 initially intercepts the particulate matter in the dust-laden airflow, the dust-laden airflow will pass through the interception mesh plate 8 and be transported to the bag dust collector through the conveying pipe 10 for further dust removal operations.

[0044] In all the solutions mentioned above, the connection between two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which are not listed here one by one. In the above, whenever there is a fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0045] In all the solutions mentioned above, if there is no clear description about the operation of electrical components, they are all controlled by the controller. Since the devices matched with the controller are common devices, their control principles and circuit connections are well-known and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0046] In all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are well-known technologies and will not be described in detail in this utility model.

[0047] In all the solutions mentioned above, those involving the connection between solar panels and batteries can be used in conjunction with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and line connections are all well-known and mature technologies. Their electrical connection relationships and specific circuit structures will not be described in detail here.

Claims

1. A dust removal device for expanded perlite production, comprising a suction pipe (1), characterized in that: The outer cover of the suction pipe (1) is provided with a cooling cover (2), a spiral guide plate (3) is provided between the cooling cover (2) and the suction pipe (1), a spiral guide cavity (4) is formed between the spiral guide plate (3), the cooling cover (2) and the suction pipe (1), one end of the spiral guide cavity (4) is provided with a liquid inlet pipe (5), and the other end is provided with a liquid outlet pipe (6), the tail end of the suction pipe (1) is provided with an interception box (7), the interception box (7) is provided with an interception mesh plate (8) at an angle, the bottom end of the interception box (7) is provided with a slag discharge box (9), a slag discharge structure is provided in the slag discharge box (9), the air outlet side of the interception box (7) is provided with a conveying pipe (10), and the tail end of the conveying pipe (10) is connected to a bag dust collector.

2. The dust removal device for expanded perlite production according to claim 1, characterized in that: A heat conduction plate (11) is provided on the outer wall of the air suction pipe (1), and the heat conduction plate (11) extends to the interior of the spiral flow guide cavity (4) where a plurality of heat exchange fins (12) are evenly provided.

3. The dust removal device for expanded perlite production according to claim 1, characterized in that: A sealing cover (13) is provided at the tail of the slag discharge box (9), and the sealing cover (13) is driven to open and close by a cylinder structure.

4. The dust removal device for expanded perlite production according to claim 3, characterized in that: The slag discharge structure comprises a spiral discharge shaft (14) rotatably mounted in a slag discharge box (9) via a bearing, a motor (15) is provided outside the slag discharge box (9), and an output end of the motor (15) is transmission-connected to the spiral discharge shaft (14).

5. The dust removal device for expanded perlite production according to claim 4, characterized in that: A guide bucket (16) is provided between the interception box (7) and the slag discharge box (9), and a connecting pipe (17) is provided at the bottom end of the guide bucket (16) connected to the slag discharge box (9), and a valve (18) is provided on the connecting pipe (17).

6. The dust removal device for expanded perlite production according to claim 5, characterized in that: A mounting frame (19) is provided in the interception box (7), and the interception screen plate (8) is mounted on the mounting frame (19) in a limited sliding manner, and a support spring (20) is provided between the interception screen plate and the mounting frame (19).

7. The dust removal device for expanded perlite production according to claim 6, characterized in that: The mounting frame (19) is provided with a mounting slot (21), the intercepting mesh plate (8) is provided with a mounting plate (22), the mounting plate (22) is provided with a mounting slide (23), and the mounting slide (23) is limitedly slidable and located in the mounting slot (21).

8. A dust removal device for expanded perlite production according to any one of claims 1 to 7, characterized in that: A filter (24) is provided on the liquid inlet pipe (5).

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