CN218589992U

CN218589992U - Dust collecting and removing device for roller screen

Info

Publication number: CN218589992U
Application number: CN202222738104.5U
Authority: CN
Inventors: 邱治国; 王海洋; 顾培峻; 耿成兵; 张彬
Original assignee: JIANGSU SURUN HIGH-CARBON CO LTD
Current assignee: JIANGSU SURUN HIGH-CARBON CO LTD
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-10
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a dust collecting and removing device for a roller screen, which comprises a dust collecting cover covered above the roller screen, wherein the top end of the dust collecting cover is provided with an exhaust pipe which is connected with a dust removing mechanism, and the dust removing mechanism comprises a connecting cylinder body and a filter screen layer which is detachably arranged in the connecting cylinder body; and a cleaning system for spraying high-pressure air to the filter screen layer is arranged on the circumference of the connecting cylinder body. The dust collecting hood of the utility model can form a negative pressure area above the roller screen drum, thereby efficiently collecting the escaping smoke dust of the roller screen; the filter screen layer can filter and remove dust with larger particle size, and can be periodically detached and cleaned; the cleaning system matched with the connecting cylinder body can periodically sweep the filter screen layer, so that the filtering effect of the filter screen layer is ensured, the replacement frequency of the filter screen layer is reduced, and the production efficiency of the system is improved; the dust collecting and removing device is suitable for dust collection and removal of equipment such as a roller screen and a conveyor belt conveying system, and has a wide application range.

Description

Dust collecting and removing device for roller screen

Technical Field

The utility model relates to an environmental protection equipment especially relates to a dust collector that gathers dust for roller screen.

Background

In coke production process, need use the drum screen to realize the separation to different particle size cokes, the cylinder of drum screen can produce great smoke and dust at the rotation separation in-process, if not collect the smoke and dust and can lead to workshop production environment to worsen, reduces operating condition, causes environmental pollution. Therefore, the dust collecting device is required to be used for collecting dust, and in order to reduce the load of dust collecting equipment, dust oil is sprayed properly in the screening process, so that the subsequent filtering and dust collecting device is easy to block, and the maintenance cost of the dust collecting device is increased.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: the utility model aims at providing a high-efficient clear dust collector that gathers dust collector improves filter equipment's clean efficiency, improves production efficiency.

The technical scheme is as follows: the utility model relates to a dust collecting and removing device for a roller screen, which comprises a dust collecting cover covered above the roller screen, wherein the top end of the dust collecting cover is provided with an exhaust pipe which is connected with a dust removing mechanism, and the dust removing mechanism comprises a connecting cylinder body and a filter screen layer which is detachably arranged in the connecting cylinder body; and a cleaning system for spraying high-pressure air to the filter screen layer is arranged on the circumference of the connecting cylinder body.

Preferably, the cleaning system comprises a ventilation ring pipe arranged outside the connecting cylinder body, one side of the ventilation ring pipe is connected with a high-pressure air source through an air pressing channel, and an automatic valve is connected to the air pressing channel;

and the inner circumference of the ventilation ring pipe is provided with a plurality of high-pressure spray heads which extend into the inner wall of the connecting cylinder body and correspond to the filter screen layer.

Preferably, the high-pressure spray head comprises two layers which are arranged corresponding to the upper side and the lower side of the filter screen layer.

Preferably, the included angle between any layer of high-pressure spray head and the filter screen layer is 15-45 degrees.

Preferably, the included angle between two adjacent high-pressure spray heads on any layer is 120 degrees.

Preferably, the automatic valve is an electric valve or an electromagnetic valve.

Preferably, the end part of the high-pressure nozzle is a plum blossom-shaped air nozzle.

Preferably, the connecting ends of the exhaust pipe and the connecting cylinder body are respectively provided with a connecting flange.

Preferably, the upper side and the lower side of the filter screen layer in the connecting cylinder body are respectively provided with a support ring and a pressing ring.

Preferably, the dust collection cover comprises a dust collection box corresponding to the roller of the roller screen, a plurality of groups of conical covers are arranged at the top end of the dust collection box along the length direction of the roller screen, and an exhaust pipe is arranged at the top end of any conical cover.

Has the advantages that: compared with the prior art, the utility model has the advantages of as follows:

1. the rear end of the exhaust pipe of the dust hood and the induced draft fan are connected, the induced draft fan can form a negative pressure area above the roller screen drum through the dust hood, and therefore the collection of scattered smoke dust of the roller screen can be efficiently realized;

2. when the smoke dust entering the dust collection cover passes through the connecting cylinder, the filter screen layer can filter and remove dust with larger particle size, and the filter screen layer can be periodically detached and cleaned to ensure the dust removal effect of the dust removal mechanism;

3. the cleaning system matched with the connecting cylinder body can periodically sweep the filter screen layer, so that the filtering effect of the filter screen layer is ensured, the replacement frequency of the filter screen layer is reduced, and the production efficiency of the system is improved;

4. the dust collecting cover with the structure is suitable for dust collection and removal of equipment such as a roller screen and a conveyor belt conveying system, and has a wide application range.

Drawings

FIG. 1 is a schematic view of the installation structure of the roller screen and dust collecting and removing device of the present invention;

fig. 2 is a schematic structural diagram of the dust removing mechanism in fig. 1.

Reference numerals:

1. rolling and screening; 2. a dust collection cover; 3. a dust collection box; 4. a conical cover; 5. an exhaust pipe; 6. a compressed air channel; 7. an automatic valve; 8. a dust removal mechanism; 9. a connecting flange; 10. connecting the cylinder body; 11. a high pressure spray head; 12. a support ring; 13. a filter screen layer; 14. pressing a ring; 15. a ventilation ring pipe; 16. and connecting the bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

With reference to fig. 1, the utility model discloses a dust collecting and removing device for roller screen, dust collecting and removing device include the dust cage 2 that covers in roller screen 1 top, and dust cage 2 includes the dust collection box 3 that corresponds with roller screen 1's cylinder, and the horizontal cross sectional area of dust collection box 3 is greater than the biggest horizontal cross sectional area of cylinder, also is the at least cylinder of dust collection box. Three groups of conical covers 4 are arranged at the top end of the dust collection box 3 along the length direction of the roller screen, and an exhaust pipe 5 is arranged at the top end of each group of conical covers 4; the dust-collecting cover with the structure can increase the suction force of the dust-collecting cover in unit area, thereby improving the dust collecting effect on the roller screen.

Referring to fig. 2, the top end of the exhaust pipe 5 is provided with a connecting flange 9 at the top end of the exhaust pipe 5. The dust removing mechanism 8 comprises a connecting cylinder 10, the upper end and the lower end of the connecting cylinder 10 are respectively provided with a connecting flange 9, and the connecting cylinder 10 is fixedly connected with the exhaust pipe 5 through a connecting bolt 16 through the connecting flange. A support ring 12 is arranged in the connecting cylinder 10, a filter screen layer 13 is clamped on the support ring 12, and the filter screen layer is tightly pressed on the support ring 12 through a pressing ring 14; the filter screen layer can adopt a multi-layer filter screen structure so as to improve the dust filtering effect of the dust collection cover; the filter screen layer 13 can be conveniently replaced and cleaned, and the dust removal effect of the dust removal mechanism 8 is ensured.

Referring to fig. 2, a cleaning system for spraying high-pressure air to the filter screen layer 13 is arranged in the circumferential direction of the connecting cylinder 10, the cleaning system comprises a ventilation ring pipe 15 arranged outside the connecting cylinder 10, one side of the ventilation ring pipe 15 is connected with a high-pressure air source through an air pressing channel 6, and the automatic valve 7 is connected to the air pressing channel 6; the automatic valve 7 is an electric valve or an electromagnetic valve, and the automatic valve 7 can control the high-pressure air quantity entering the ventilation ring pipe, so that the purging and cleaning of the filter screen layer are met. Two rows of high-pressure nozzles 11 which are vertically corresponding and extend into the inner wall of the connecting cylinder 10 are arranged on the inner circumference of the ventilation ring pipe 15, and the two layers of high-pressure nozzles 11 are respectively and correspondingly arranged on the upper side and the lower side of the filter screen layer 13; each high-pressure spray nozzle 11 on the upper layer is obliquely arranged downwards and corresponds to the corresponding filter screen layer, each high-pressure spray nozzle 11 on the lower layer is obliquely arranged upwards and corresponds to the corresponding filter screen layer, and the included angle between each high-pressure spray nozzle 11 and the filter screen layer 13 is 15-45 degrees; the included angle between two adjacent high pressure nozzles 11 on each layer is 120 degrees, so that crossed air flow is formed when the filter screen layer is blown, and the blowing effect is improved. The end part of the high-pressure nozzle 11 is a plum blossom-shaped air nozzle, and the high-pressure nozzle 11 can realize the ejection of high-pressure air in a certain area, thereby improving the cleaning effect. During operation, periodically purging is carried out on the filter screen layer through the cleaning device at regular time, the blockage of the filter screen layer is reduced, and the filtering performance of the dust removal mechanism is improved.

The utility model discloses a theory of operation or working method:

during operation, the rear end of the exhaust pipe of the dust hood is connected with the draught fan, and the draught fan can form a negative pressure area above the roller screen roller through the dust hood, so that the scattered smoke and dust of the roller screen can be efficiently collected. When the smoke dust entering the dust collection cover passes through the connecting cylinder, the filter screen layer can filter and remove dust with larger particle size, and the filter screen layer can be periodically detached and cleaned so as to ensure the dust removal effect of the dust removal mechanism. The cleaning system matched with the connecting cylinder body can sweep the filter screen layer periodically, so that the filtering effect of the filter screen layer is ensured, the replacement frequency of the filter screen layer is reduced, and the production efficiency of the system is improved.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The dust collecting and removing device for the roller screen is characterized by comprising a dust collecting cover (2) covering the roller screen (1), wherein an exhaust pipe (5) is arranged at the top end of the dust collecting cover (2), the exhaust pipe (5) is connected with a dust removing mechanism (8), and the dust removing mechanism (8) comprises a connecting cylinder body (10) and a filter screen layer (13) detachably arranged in the connecting cylinder body; and a cleaning system for spraying high-pressure air to the filter screen layer (13) is arranged in the circumferential direction of the connecting cylinder body (10).

2. The dust collecting and removing device for the roller screen is characterized in that the cleaning system comprises a ventilation ring pipe (15) arranged outside the connecting cylinder body (10), one side of the ventilation ring pipe (15) is connected with a high-pressure air source through an air pressing channel (6), and an automatic valve (7) is connected to the air pressing channel (6);

the inner circumference of the ventilation ring pipe (15) is provided with a plurality of high-pressure spray heads (11) which extend into the inner wall of the connecting cylinder body (10) and correspond to the filter screen layer (13).

3. The dust collecting and removing device for the roller screen according to claim 2, wherein the high pressure nozzle (11) comprises two layers arranged corresponding to the upper and lower sides of the filter screen layer (13).

4. The dust collecting and removing device for the roller screen is characterized in that the included angle between the high-pressure spray heads (11) and the filter screen layer (13) of any layer is 15-45 degrees.

5. The dust collecting and removing device for the roller screen according to claim 3, wherein an included angle between two adjacent high-pressure spray heads (11) in any layer is 120 degrees.

6. The dust collecting and removing device for the roller screen according to claim 2, wherein the automatic valve (7) is an electric valve or an electromagnetic valve.

7. The dust collecting and removing device for the roller screen is characterized in that the end part of the high-pressure nozzle (11) is a plum blossom-shaped air jet.

8. The dust collecting and removing device for the roller screen is characterized in that connecting flanges (9) are respectively arranged at the connecting ends of the exhaust pipe (5) and the connecting cylinder body (10).

9. The dust collecting and removing device for the roller screen is characterized in that a support ring (12) and a pressing ring (14) are respectively arranged on the upper side and the lower side of a filter screen layer (13) in the connecting cylinder body (10).

10. The dust collecting and removing device for the roller screen is characterized in that the dust collecting cover (2) comprises a dust collecting box (3) corresponding to the roller screen (1), a plurality of groups of conical covers (4) are arranged at the top end of the dust collecting box (3) along the length direction of the roller screen, and an exhaust pipe (5) is arranged at the top end of any one conical cover (4).