Unit type filtering dust removal equipment

Abstract

The invention discloses unit type filtering dust removal equipment, and relates to the technical field of filtering dust removal, the unit type filtering dust removal equipment comprises a dust removal box, and the dust removal box comprises two end units which are oppositely spliced; each end unit comprises an upper end air chamber section and a lower end dust hopper section, and the end air chamber sections and the end dust hopper sections are connected in a spliced mode; end partition plates are fixedly welded to the upper portions of the end air chamber sections and extend to the splicing faces of the corresponding end units, the end partition plates of the two end units are connected in a spliced mode, the dust removal box is internally divided into an upper air purification chamber and a lower dust air chamber through the two end partition plates, the dust air chamber is connected with an air inlet, and the air purification chamber is connected with an air outlet. A plurality of filtering structures are mounted on the end partition plate; a middle expansion unit is added between the two end units, and the middle expansion unit is connected with the two end units in a spliced mode. The design and production workload is reduced, transportation is convenient, on-site construction is convenient, the overall cost is reduced, and the supply cycle is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of filtering and dust removal, and in particular to a unit-type filtering and dust removal device. Background Art

[0002] A dust collector is a device used to filter dust particles from dust-laden gas. Its main structure is a hollow box structure, including an upper clean air chamber and a lower dusty gas chamber. A partition is arranged between the clean air chamber and the dusty gas chamber, and a number of filtering structures located in the dusty gas chamber are installed on the partition. A dust hopper is arranged at the lower part of the dusty gas chamber. The clean air chamber is connected to a negative pressure fan to provide suction. After the dust-laden gas enters the dusty gas chamber, it flows toward the clean air chamber. When passing through the filtering structure, the dust particles therein are blocked by the filtering structure to achieve the filtering purpose. The filtered dust particles gradually settle in the dust hopper and are finally output by a discharge valve, etc.

[0003] Dust collectors with different processing capacities have different volumes and sizes, and need to be designed and produced accordingly according to actual needs. Therefore, when producing dust collectors of different models, from the initial structural design to the later process design, and then to machining, they are all accompanied by new labor output, high labor costs, long production cycles, and high error rates in parts processing. Due to the generally large size of dust collectors, it is difficult to transport them as a whole, so the various parts designed and produced at this stage are mainly transported to the site and then welded together. As a result, a large number of welding operations will be generated on site, and the on-site welding itself is difficult to construct, resulting in a long on-site construction cycle, further increased labor costs, and it is difficult to guarantee deformation after welding. Limited by the above factors, the current dust collector has poor timeliness of supply, low price competitiveness, and it is difficult to expand overseas markets. To this end, it is necessary to comprehensively consider the actual design, production and construction of the dust collector and further optimize and improve it. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a unit-type filtering and dust removal equipment which reduces the workload of design and production, is convenient for transportation, is convenient for on-site construction, and is conducive to reducing overall costs and shortening supply cycles.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a unit-type filtering and dust removal equipment, including a dust removal box, the dust removal box includes two end units spliced ​​oppositely; the end unit includes an upper end air chamber section and a lower end dust hopper section, the end air chamber section is spliced ​​and connected to the end dust hopper section; an end partition is fixedly welded on the upper part of the end air chamber section, the end partition extends to the splicing surface corresponding to the end unit, the end partitions of the two end units are spliced ​​and connected, the two end partitions divide the dust removal box into an upper clean air chamber and a lower dust air chamber, the dust air chamber is connected to an air inlet, and the clean air chamber is connected to an air outlet; a number of filtering structures are installed on the end partition; a middle expansion unit is used to be added between the two end units, and the middle expansion unit is spliced ​​and connected to the two end units respectively.

[0006] As a preferred technical solution, the middle expansion unit includes an upper expansion air chamber section and a lower expansion dust hopper section, and the expansion air chamber section is spliced ​​and connected to the expansion dust hopper section; an expansion partition is fixedly welded to the upper part of the expansion dust hopper section, and a plurality of filtering structures are installed on the expansion partition; both ends of the expansion partition extend to the splicing surface on the corresponding side of the middle expansion unit, and the expansion partition is spliced ​​and connected to the two end partitions respectively.

[0007] As a preferred technical solution, an extended dust hopper is installed at the bottom of the two end dust hopper sections or at the bottom of the extended dust hopper section and the two end dust hopper sections.

[0008] As a preferred technical solution, a splicing reinforcement mechanism is provided at the joint between the two end units or at the joint between the end unit and the middle expansion unit.

[0009] As a preferred technical solution, a sealing structure is provided at a joint between the two end units located at the clean air chamber or at a joint between the end unit and the middle expansion unit located at the clean air chamber.

[0010] As a preferred technical solution, the end unit and the middle expansion unit are respectively provided with back-blowing pipes located in the clean air chamber, the back-blowing pipes extending out of the clean air chamber are respectively connected to pulse valves, and the pulse valves are connected to an air bag in a common pipeline.

[0011] As a preferred technical solution, top guardrails are fixedly installed on the top of the end air chamber segment and the top of the expansion air chamber segment, respectively, and adjacent top guardrails are fixedly connected.

[0012] As a preferred technical solution, the end air chamber section includes an end air chamber side plate arranged in a U shape, and an end top plate assembly is fixedly provided on the top of the end air chamber side plate.

[0013] As a preferred technical solution, the expanded air chamber section includes two relatively arranged expanded air chamber side panels, and the two ends of the expanded air chamber side panels are respectively bolted and fixedly connected to the two end air chamber side panels on the corresponding sides; an expanded top plate assembly is commonly fixedly provided on the tops of the two expanded air chamber side panels, and the two ends of the expanded top plate assembly are respectively bolted and fixedly connected to the two end top plate assemblies.

[0014] Due to the adoption of the above technical solution, the present invention forms a basic type by splicing two end units, and realizes the production of other models by adding a middle expansion unit on the basis of the basic type. The design, process and processing of the two end units remain unchanged, and only the middle expansion unit is designed and produced according to actual needs, which reduces the workload of design and production. The size of the two end units remains unchanged, the transportation volume remains basically unchanged, and the impact of transportation size, etc. is small, and transportation is convenient. The on-site is mainly for assembly, and the welding work is greatly reduced, and the on-site construction is convenient. The workload and labor from design and production to construction are significantly reduced, which is conducive to reducing the overall cost and shortening the delivery cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention. Figure 1 It is a schematic diagram of the three-dimensional structure of the basic type of an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure from another perspective; Figure 3 yes Figure 1 Schematic diagram of AA structure in; Figure 4 yes Figure 3 A schematic diagram of the structure at position Ⅰ in FIG. Figure 5 yes Figure 4 Schematic diagram of DD structure in; Figure 6 yes Figure 3 Schematic diagram of BB structure in; Figure 7 yes Figure 6 An enlarged structural schematic diagram of a top plate assembly at one of the ends; Figure 8 yes Figure 7 An enlarged structural diagram of the middle sealing structure; Fig. 9 yes Figure 3 Schematic diagram of CC structure in; Fig.10 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention in which a middle expansion unit is added; Fig.11 yes Fig.10 Schematic diagram of the cross-sectional structure.

[0016] In the figure: 1-end unit; 11-end air chamber section; 12-end dust hopper section; 13-end air chamber side panel; 14-end partition; 15-end top plate assembly; 2-middle extension unit; 21-extension air chamber section; 22-extension dust hopper section; 23-extension air chamber side panel; 24-extension partition; 25-extension top plate assembly; 3-U-shaped plate; 31-top opening; 32-top door; 4-extended dust hopper; 5-backflush pipe fitting; 51-pulse valve; 52-air bag; 6-top guardrail; 7-sealing structure; 71-sealing installation groove; 72-flexible sealing sheet; 73-sealing pressure strip; 8-splicing reinforcement mechanism; 81-splicing reinforcement ear plate; 82-splicing reinforcement rod; 91-clean air chamber; 92-dust air chamber; 93-air inlet; 94-air outlet. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0018] like Figures 1 to 9 As shown together, the unit-type filtering dust removal equipment includes a dust removal box, and the dust removal box includes two oppositely spliced ​​end units 1. The end unit 1 includes an upper end air chamber section 11 and a lower end dust hopper section 12, and the end air chamber section 11 is spliced ​​and connected with the end dust hopper section 12. The splicing here can be achieved by flange bolt connection, and the flange structure can be formed by sheet metal bending on the wall panels of the end air chamber section 11 and the end dust hopper section 12. This cold processing and bolt connection method can avoid on-site welding connection, reduce construction difficulty, help shorten the construction period, and help reduce welding deformation.

[0019] The end air chamber section 11 includes an end air chamber side plate 13 arranged in a U shape, and an end top plate assembly 15 is fixedly arranged on the top of the end air chamber side plate 13; of course, the bottom of the end air chamber side plate 13 is spliced ​​and connected with the end dust hopper section 12. Referring to the splicing connection of the end air chamber section 11 and the end dust hopper section 12 using flange bolt connection, the connection of the end air chamber side plate 13 with other units, and the splicing of the end air chamber side plate 13 with the end dust hopper section 12 can all be connected by flange bolt connection.

[0020] like Figure 7 and Figure 8As shown, the end top plate assembly 15 includes a U-shaped plate 3 fixedly welded at the U-shaped opening at the top of the end air chamber side plate 13, and the U-shaped plate 3 and the end air chamber side plate 13 together form a top opening 31, and a top door 32 is buckled at the top opening 31. The side wall of the U-shaped plate 3 away from the end air chamber side plate 13 constitutes a flange structure for bolt connection with other units. When the top opening 31 is relatively large and the volume and weight of a single top door 32 are relatively large, a U-shaped plate 3 can be welded at the top opening 31 to separate the top opening 31, and correspondingly, the top door 32 is divided into two. Among them, the buckling of the top door 32 at the top opening 31 is a well-known technology in the art and will not be repeated here.

[0021] like Figures 1 to 3 As shown, when the height of the dust removal box is relatively high, the end air chamber side panel 13 can also be arranged in sections, and the upper section and the lower section are spliced ​​and connected. The upper section is an overall U-shaped structure, and the lower section is spliced ​​by two L-shaped structural bolts. This can reduce the size of a single panel, which is beneficial to improve the utilization rate of the panel and improve the convenience of sheet metal processing.

[0022] With reference to the structural setting of the end air chamber section 11, especially the structural setting of the lower section of the end air chamber side plate 13, the end dust hopper section 12 may also be formed by splicing two L-shaped structural bolts, and its upper end is fixedly connected to the lower end of the end air chamber side plate 13 using flange-shaped bolts.

[0023] like Figure 3 and Figure 6 As shown, an end partition 14 is fixedly welded to the upper part of the end air chamber section 11, and the end partition 14 is extended to the splicing surface corresponding to the end unit 1, and the end partitions 14 of the two end units 1 are spliced ​​and connected. Based on the structure of the end unit 1 described in this embodiment, the end partition 14 is actually welded in the end air chamber side plate 13, and further, it is welded in the upper section of the end air chamber side plate 13, and its end close to other units is also bent into a flange structure for bolt connection. At this point, the upper section of the end air chamber side plate 13, the end top plate assembly 15 and the end partition 14 can be a pre-welded whole, which can be transferred as a whole after assembly welding. After transportation to the site, it is still only spliced ​​and connected, avoiding welding construction and reducing construction difficulty.

[0024] like Figure 3As shown, the two end partitions 14 divide the dust removal box into an upper clean air chamber 91 and a lower dust air chamber 92, and a number of filter structures are installed on the end partitions 14; the dust air chamber 92 is connected to an air inlet 93, and the clean air chamber 91 is connected to an air outlet 94. After the air outlet 94 is connected to the negative pressure fan, the dust-containing gas sucked from the air inlet 93 is filtered by the filter structure in the process of flowing to the clean air chamber 91. Among them, the filter structure is a commonly used technology known in the art, which can be a filter bag, a filter cartridge or a plastic sintered plate, etc., which will not be repeated here and is not shown in the figure.

[0025] like Figure 1 As shown, the air inlet 93 of this embodiment is arranged on one of the end dust hopper sections 12. Based on the fact that the end dust hopper section 12 is formed by bolting two L-shaped structures, the air inlet 93 is also arranged as two half-cylinder structures, which are bolted together in the form of flanges to form an air inlet pipe. Based on the fact that the upper section of the end air chamber side plate 13 is U-shaped, the air outlet 94 can be directly opened on the upper section.

[0026] like Fig.10 and Fig.11 As shown, the middle expansion unit 2 is used to be added between the two end units 1, and the middle expansion unit 2 is spliced ​​and connected with the two end units 1 respectively. In this embodiment, the two end units 1 are spliced ​​to form a basic type, and the production of other models is realized by adding the middle expansion unit 2 on the basis of the basic type. The design, process and processing of the two end units 1 remain unchanged, and only the middle expansion unit 2 is designed and produced according to actual needs, and the design and production workload is reduced. The size of the two end units 1 remains unchanged, the transportation volume remains basically unchanged, and the impact of the transportation size, etc. is small, and transportation is convenient. The main work on site is assembly, and the welding work is greatly reduced, and the on-site construction is convenient. The workload and labor from design and production to construction are significantly reduced, which is conducive to reducing the overall cost and shortening the delivery cycle. Among them, the middle expansion unit 2 can be designed with an extension length according to the actual processing volume, which can be a whole one or multiple, and is not limited here. This embodiment is only illustrated by adding a middle expansion unit 2.

[0027] The middle expansion unit 2 of this embodiment includes an upper expansion air chamber section 21 and a lower expansion dust hopper section 22, wherein the expansion air chamber section 21 is spliced ​​and connected with the expansion dust hopper section 22; an expansion partition 24 is fixedly welded to the upper part of the expansion dust hopper section 22, and a plurality of filter structures are installed on the expansion partition 24; both ends of the expansion partition 24 extend to the splicing surface of the corresponding side of the middle expansion unit 2, and the expansion partition 24 is spliced ​​and connected with the two end partitions 14 respectively. Of course, after the middle expansion unit 2 is spliced, the expansion partition 24 and the two end partitions 14 together divide the dust removal box into a clean air chamber 91 and a dust air chamber 92.

[0028] The expansion chamber section 21 includes two expansion chamber side panels 23 arranged opposite to each other, and the two ends of the expansion chamber side panels 23 are respectively bolted and fixedly connected with the two end chamber side panels 13 on the corresponding side. It is also preferred that flange structures are processed by sheet metal at the two ends of the expansion chamber side panels 23 to form a bolt connection. An expansion top plate assembly 25 is fixedly provided on the top of the two expansion chamber side panels 23, and the two ends of the expansion top plate assembly 25 are respectively bolted and fixedly connected with the two end top plate assemblies 15. The expansion top plate assembly 25 is a U-shaped plate 3 welded at the two openings on the top of the two expansion chamber side panels 23, and a top opening 31 is formed between the two U-shaped plates 3. A top door 32 is buckled on the top opening 31, and the far side walls of the two U-shaped plates 3 respectively constitute a flange structure bolted to the corresponding end top plate assembly 15. Of course, when the top opening 31 is large, a U-shaped plate 3 can also be welded between the two U-shaped plates 3 to divide the top opening 31 and reduce the volume and weight of a single top door 32.

[0029] When the expansion chamber side plate 23 is relatively high, it can also be set to two sections, the upper and lower sections, and the expansion partition 24 is welded to the upper sections of the two expansion chamber side plates 23. So far, the upper sections of the two expansion chamber side plates 23, the expansion partition 24 and the expansion top plate assembly 25 can be pre-welded as a whole, and transported as a whole after assembly welding; and the lower sections of the two expansion chamber side plates 23 are respectively formed into rectangular plates, which are convenient for overall transportation, and only need to be spliced ​​and assembled after arriving at the site, which also reduces the construction difficulty, helps to shorten the construction period, and helps to reduce welding deformation.

[0030] Correspondingly, the extended dust hopper section 22 includes two relatively arranged extended dust hopper side panels, both of which are approximately trapezoidal panels, which are easy to transport and only require sheet metal processing of flange structures on four sides, which can be spliced ​​and assembled on site.

[0031] Preferably, if Figure 1 , Figure 2 , Fig.10 and Fig.11 As shown, the bottom of the two end dust hopper segments 12 or the extended dust hopper segment 22 and the bottom of the two end dust hopper segments 12 are jointly installed with an extended dust hopper 4. Whether the middle extension unit 2 is added or not, the length of the opening at the bottom of the dust hopper segment will be different; in this embodiment, by adding the extended dust hopper 4, the opening at the bottom of the dust hopper segment is converted into an opening that can be equipped with a discharge valve, etc. The separate extended dust hopper 4 has a simple structure, a small design and production workload, is convenient to transport, and is easy to assemble on site.

[0032] Preferably, if Figure 2 and Figure 3As shown, the end unit 1 and the middle expansion unit 2 are respectively provided with a backflush pipe 5 located in the clean air chamber 91, and the backflush pipe 5 extends out of the clean air chamber 91 and is respectively connected to a pulse valve 51, and the pulse valve 51 is connected to an air bag 52 through a common pipeline. The backflush pipe 5 and the pulse valve 51 are designed and matched with the corresponding units, and no additional design and production workload is added to the end unit 1, and only the middle expansion unit 2 is designed and matched according to actual needs; and the air bag 52 is a relatively simple tubular hollow structure, and the design and production are simple, so the design and production workload after expansion is less, and the difficulty of on-site assembly construction is small.

[0033] Preferably, if Figures 1 to 3 As shown, the top of the end air chamber segment 11 and the top of the expansion air chamber segment 21 are respectively fixedly mounted with top guardrails 6, and the adjacent top guardrails 6 are fixedly connected. Since the upper sections of the end air chamber side panels 13 and the expansion air chamber side panels 23 are pre-welded, the top guardrails 6 can be fixedly mounted on the corresponding air chamber segments in various forms such as plug-in, riveting or welding, which are not limited here; the fixed connection of adjacent top guardrails 6 can be in various detachable connection forms such as hoop connection or connection plate bolt connection, which are not limited here.

[0034] Preferably, if Figures 6 to 8 As shown, a sealing structure 7 is provided at the joint of the two end units 1 located at the clean air chamber 91 or at the joint of the end unit 1 and the middle expansion unit 2 located at the clean air chamber 91, so as to strengthen the sealing of the joint. Conventionally, during splicing, sealant is applied in advance to the splicing surface of the clean air chamber 91, and after splicing, the sealant is spread in the joint to form a seal. The sealing structure 7 described in this embodiment includes sealing installation grooves 71 fixedly arranged on both sides of the joint, a flexible sealing sheet 72 is covered between the two sealing installation grooves 71, and sealing strips 73 are pressed into the two sealing installation grooves 71 to press the side panels of the flexible sealing sheet 72 into the sealing installation grooves 71. Through this structure, a second seal is formed on the inner side of the joint, the sealing performance at the joint is improved, and the normal operation of the clean air chamber 91 after on-site assembly is ensured.

[0035] Preferably, if Figures 3 to 5As shown, a splicing reinforcement mechanism 8 is provided at the joint of the two end units 1 or the joint of the end unit 1 and the middle expansion unit 2. In this embodiment, a weak point is formed at the unit joint, especially after the middle expansion unit 2 is added, the side area of ​​the unit joint is larger, and the ability to withstand the internal negative pressure environment is weaker. In this embodiment, the splicing reinforcement mechanism 8 is added to reinforce the joint to improve the overall anti-deformation ability of the box. The splicing reinforcement mechanism 8 includes splicing reinforcement ear plates 81 fixedly welded on both sides of the joint, of course, the two splicing reinforcement ear plates 81 are on different units, and a splicing reinforcement rod 82 is fixedly connected between the splicing reinforcement ear plates 81 between the two relative joints. The end of the splicing reinforcement rod 82 can be connected to the splicing reinforcement ear plate 81 of the corresponding end beam by bolt connection, etc. Through the support of the splicing reinforcement rod 82, the anti-deformation ability of the two relative joints is enhanced. At the same time, the bolt tightening force of the bolt connection can also promote more reliable splicing inside the joint.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Unitary filtering and dust removal equipment, including a dust removal box, characterized in that: The dust removal box includes two end units that are spliced ​​together relatively; the end unit includes an upper end air chamber section and a lower end dust hopper section, and the end air chamber section is spliced ​​and connected to the end dust hopper section; an end partition is fixedly welded on the upper part of the end air chamber section, and the end partition extends to the splicing surface corresponding to the end unit, and the end partitions of the two end units are spliced ​​and connected, and the two end partitions divide the dust removal box into an upper clean air chamber and a lower dust air chamber, the dust air chamber is connected to an air inlet, and the clean air chamber is connected to an air outlet; a number of filtering structures are installed on the end partition; a middle expansion unit is used to be added between the two end units, and the middle expansion unit is spliced ​​and connected to the two end units respectively.

2. The unit type filtering and dust removal equipment according to claim 1, characterized in that: The middle expansion unit includes an upper expansion air chamber section and a lower expansion dust hopper section, and the expansion air chamber section is spliced ​​and connected to the expansion dust hopper section; an expansion partition is fixedly welded to the upper part of the expansion dust hopper section, and a plurality of filtering structures are installed on the expansion partition; the two ends of the expansion partition extend to the splicing surface on the corresponding side of the middle expansion unit, and the expansion partition is spliced ​​and connected to the two end partitions respectively.

3. The unit type filtering and dust removal equipment according to claim 2, characterized in that: An extended dust hopper is installed at the bottom of the two end dust hopper sections or the bottom of the extended dust hopper section and the two end dust hopper sections.

4. The unit type filtering and dust removal equipment according to claim 1, characterized in that: A splicing reinforcement mechanism is provided at the splicing joint of the two end units or at the splicing joint of the end unit and the middle expansion unit.

5. The unit type filtering and dust removal equipment according to claim 1, characterized in that: A sealing structure is provided at a joint between the two end units located at the clean air chamber or at a joint between the end unit and the middle expansion unit located at the clean air chamber.

6. The unit type filtering and dust removal equipment according to claim 1, characterized in that: The end unit and the middle expansion unit are respectively provided with backflush pipes located in the clean air chamber, the backflush pipes extend out of the clean air chamber and are respectively connected to pulse valves, and the pulse valves are connected to an air bag through a common pipeline.

7. The unit type filtering and dust removal equipment according to claim 2, characterized in that: Top guardrails are fixedly mounted on the top of the end air chamber section and the top of the expansion air chamber section, respectively, and adjacent top guardrails are fixedly connected.

8. The unit type filtering and dust removal equipment according to claim 2, characterized in that: The end air chamber section comprises an end air chamber side plate arranged in a U shape, and an end top plate assembly is fixedly arranged on the top of the end air chamber side plate.

9. The unit type filtering and dust removal equipment according to claim 8, characterized in that: The expanded air chamber section includes two relatively arranged expanded air chamber side panels, and the two ends of the expanded air chamber side panels are respectively fixedly connected with the two end air chamber side panels on the corresponding sides by bolts; the tops of the two expanded air chamber side panels are jointly fixed with an expanded top plate assembly, and the two ends of the expanded top plate assembly are respectively fixedly connected with the two end top plate assemblies by bolts.

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