Dust removal system for crushing and screening

Abstract

The utility model discloses a dust removal system for crushing and screening, which comprises a connecting pipe, a dust collecting pipe, a balance pipe, a cyclone tower, a working part, a power fan and a dust removal part, the dust removal part comprises an equipment breathing port connecting pipe, a quick coupler, a filter element and a closed dust collecting cover, and the equipment breathing port connecting pipe is connected with the filter element through the quick coupler; a closed dust collection cover is arranged outside the filter element; the working part comprises a feeding machine, a crushing and screening machine, a hopper, a stock bin and a packaging machine, a feeding opening of the feeding machine is connected with the stock bin through a pipeline, a discharging opening of the feeding machine is connected with the crushing and screening machine, the hopper is arranged at the bottom of the crushing and screening machine, and a discharging opening in the bottom of the hopper is connected with the packaging machine through a pipeline; the packaging machine and the feeding machine are both connected with the power fans through pipelines, and outlets of the two power fans are both connected with the cyclone tower. The closed dust collection covers are gathered to a dust collection pipe through a connecting pipe, the dust collection pipe is connected to a balance pipe, and a blind plate is arranged at the bottom of the dust collection pipe.

Description

Technical Field

[0001] This utility model belongs to the field of crushing and dust removal, and more specifically, this utility model relates to a dust removal system for crushing and screening. Background Technology

[0002] In the powder industry, screening and crushing are crucial steps in material pretreatment. Traditional screening and crushing equipment often employs open or semi-open structures, where the strong mechanical force and material drop generate dust. During pneumatic conveying, the back-blowing of the feeder also releases fine dust. Although Roots blowers, turbo pumps, and other powered blowers have built-in dust collection devices, the hot air discharged from the blowers still contains extremely fine dust particles, and the exhaust vents are mostly located on-site. Traditional screw conveyors and tubular chains, in order to prevent material bridging, usually use air discs or vibrators to break up material arches, but they cannot avoid pressure balancing and breathing in each stage of material storage units, leading to dust escape.

[0003] Current dust removal methods mainly rely on simple cloth bags or filter cartridges, which cannot meet the requirements for intercepting fine dust particles. Simple open-type dust collection devices are also difficult to accurately capture the escaped fine dust particles, resulting in excessively high dust concentrations in the workshop, causing material waste and endangering the health of operators. Utility Model Content

[0004] The technical problem to be solved by this utility model is to solve the problems of dust emission, environmental pollution and threats to workers' health in existing processes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dust removal system for crushing and screening includes a connecting pipe, a dust collection pipe, a balancing pipe, a cyclone tower, a working section, a power fan, and a dust collection section.

[0007] The dust removal unit includes an equipment breather pipe, a quick-connect fitting, a filter element, and a sealed dust collection hood. The equipment breather pipe is connected to the filter element via a quick-connect fitting, and the filter element is provided with a sealed dust collection hood.

[0008] The working unit includes a feeder, a crusher and screener, a hopper, a bin, and a packaging machine. The feeder's inlet is connected to the bin via a pipe, and the feeder's outlet is connected to the crusher and screener. A hopper is installed at the bottom of the crusher and screener, and the hopper's outlet is connected to the packaging machine via a pipe. Both the packaging machine and the feeder are connected to power fans via pipes, and the outlets of both power fans are connected to a cyclone tower.

[0009] The sealed dust collection hood is connected to the dust collection pipe via a connecting pipe, and the integrated pipe is connected to the balance pipe. A blind plate is provided at the bottom of the dust collection pipe.

[0010] This utility model discloses a dust removal system for crushing and screening, wherein the discharge port of the feeder is connected to the crushing and screening machine by a rubber hose, and the crushing and screening machine is connected to the hopper by a rubber hose.

[0011] This utility model discloses a dust removal system for crushing and screening, wherein the dust removal parts are respectively installed at the connection between the feeder and the connecting pipe, the connection between the hopper and the dust collection pipe, and the connection between the connecting pipe and the connecting pipe between the hopper and the packaging machine.

[0012] This utility model discloses a dust removal system for crushing and screening, wherein the balance pipe is provided with multiple filter elements, and the filter elements are connected to the balance pipe through quick-connect couplings.

[0013] This utility model discloses a dust removal system for crushing and screening, which can be equipped with multiple working units.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The dust removal system designed in this utility model uses various breathing ports to achieve gas flow or pressure balance. Through a two-stage dust removal method of filtration through the breathing ports and collection through pressure balance pipes, it can capture extremely fine dust particles. It requires low investment, has a simple device, high flexibility, and high dust removal efficiency.

[0016] 2. The exhaust outlet of the power fan itself has a high temperature and loud noise. The dust-laden hot air discharged by the fan is captured and collected by the cyclone tower, which reduces the temperature and noise of the fan room, improves the on-site environment of the fan, and extends the service life of the equipment.

[0017] 3. The dust removal method used in this device does not pollute the materials and can achieve complete material recovery, which significantly increases the benefits for valuable materials.

[0018] 4. This dust removal device achieves dust-free management, meets the requirements of a cleanroom, solves the harm of dust to human health and the environment, and creates a more comfortable working environment for workers.

[0019] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0021] Figure 1 This is a schematic diagram of the present invention;

[0022] The following are marked in the diagram: 1. Equipment breather nozzle; 2. Quick-connect fitting; 3. Filter element; 4. Sealed dust collection hood; 5. Connecting pipe; 6. Dust collection pipe; 7. Balance pipe; 8. Blind flange; 9. Flexible connection; 10. Feeder; 11. Crusher and screener; 12. Hopper; 13. Storage silo; 14. Power fan; 15. Packaging machine; 16. Cyclone tower. Detailed Implementation

[0023] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0024] like Figure 1 The dust removal system for crushing and screening shown includes a connecting pipe 5, a dust collection pipe 6, a balancing pipe 7, a cyclone tower 16, a working section, a power fan 14, and a dust removal section.

[0025] The dust removal unit includes an equipment breather pipe 1, a quick-connect fitting 2, a filter element 3, and a sealed dust collection hood 4. The equipment breather pipe 1 is connected to the filter element 3 through the quick-connect fitting 2, and the filter element 3 is provided with a sealed dust collection hood 4.

[0026] The working section includes a feeder 10, a crusher and screener 11, a hopper 12, a silo 13, and a packaging machine 15. The feed inlet of the feeder 10 is connected to the silo 13 via a pipe, and the discharge outlet of the feeder 10 is connected to the crusher and screener 11. The bottom of the crusher and screener 11 is equipped with a hopper 12, and the discharge outlet at the bottom of the hopper 12 is connected to the packaging machine 15 via a pipe. Both the packaging machine 15 and the feeder 11 are connected to the power blower 14 via pipes, and the outlets of both power blowers 14 are connected to the cyclone tower 16.

[0027] The sealed dust collection hood 4 is connected to the dust collection pipe 6 via the connecting pipe 5. The integrated pipe 6 is connected to the balance pipe 7. The bottom of the dust collection pipe 6 is equipped with a blind plate 8.

[0028] A rubber hose flexible connection 9 is used between the discharge port of the feeder 10 and the crusher and screener 11, and a rubber hose flexible connection 9 is used between the crusher and screener 11 and the hopper 12.

[0029] The dust removal components are respectively located at the connection between the feeder 10 and the connecting pipe 5, the connection between the hopper 12 and the dust collection pipe 6, and the connection between the connecting pipe 5 and the connecting pipe between the hopper 12 and the packaging machine 15.

[0030] Multiple filter elements 3 are provided on the balance tube 7, and the filter elements 3 are connected to the balance tube 7 through quick-connect fittings 2.

[0031] The dust removal system can be equipped with multiple working units.

[0032] Working principle and method

[0033] After the crusher and screener 11 starts, the material is first sucked from the hopper 13 into the feeder 10. The material from the feeder 10 enters the crusher and screener 11 through the flexible connection 9. After crushing and screening, the material enters the hopper 12 through the flexible connection 9, and then enters the packaging machine 15 for packaging, completing the closed transfer of material within the system. During the material transfer process, dust passes through the equipment's breather nozzle 1, quick-connect connector 2, filter element 3, and sealed dust collection hood 4 in the dust removal unit. Multiple sealed dust collection hoods 4 are connected to the dust collection pipe 6 via connecting pipe 5. Multiple integrated pipes 6 are connected to the balance pipe 7. The bottom of the dust collection pipe is blinded by a blind plate 8. After a period of operation, the blind plate 8 is periodically opened to recover the dust. During the crushing, screening, conveying, and transfer process, the material breathes autonomously at each breather in the screening unit. The air pressure is balanced in the main pipe, and the dust freely settles into the dust collection pipe, which is periodically cleaned and recycled. The exhaust air from the power fan 14 is drawn out in a closed manner, the temperature of the fan room drops by more than 30 degrees, and the noise is significantly reduced. The exhaust air from the power fan 14 is collected and sent into the cyclone tower 16 for washing, purification and cooling before being discharged through the outlet.

[0034] After the dust removal system in the material crushing and screening workshop was upgraded, the dust concentration in the workshop decreased from 20 mg / m³ before the upgrade. 3 Reduced to 1 mg / m 3 Each breathing port allows for autonomous breathing, preventing dust from escaping. This effectively solves problems such as dust dispersion, environmental pollution, and threats to worker health during equipment operation.

[0035] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A dust removal system for crushing and screening, comprising a connecting pipe, a dust collecting pipe, a balance pipe, a cyclone tower, a working part, a power fan and a dust removal part, characterized in that: the dust removal part comprises a device breathing port connecting pipe, a quick connector, a filter element and a closed dust collecting cover, wherein the device breathing port connecting pipe is connected through the quick connector and the filter element, and the filter element is externally provided with the closed dust collecting cover; the working part comprises a feeding machine, a crushing and screening machine, a hopper, a bin and a packaging machine, the feeding machine inlet is connected with the bin through a pipeline, the feeding machine outlet is connected with the crushing and screening machine, the crushing and screening machine bottom is provided with the hopper, and the hopper bottom outlet is connected with the packaging machine through a pipeline; the packaging machine and the feeding machine are connected with the power fan through a pipeline, and the outlets of the two power fans are connected with the cyclone tower; the closed dust collecting cover is collected to the dust collecting pipe through the connecting pipe, the integrated pipe is connected to the balance pipe, and the bottom of the dust collecting pipe is provided with a blind plate.

2. A de-dusting system for a crushing and screening plant as claimed in claim 1, characterised in that, rubber pipe soft connection is adopted between the outlet of the feeding machine and the crushing and screening machine, and rubber pipe soft connection is adopted between the crushing and screening machine and the hopper.

3. A de-dusting system for a crushing and screening plant as claimed in claim 1, characterised in that, the dust removal parts are respectively arranged at the connection between the feeding machine and the connecting pipe, the connection between the hopper and the dust collecting pipe, and the connection pipeline between the connecting pipe and the hopper and the packaging machine.

4. A de-dusting system for a crushing and screening plant as claimed in claim 1, characterised in that, a plurality of filter elements are arranged on the balance pipe, and the filter elements are connected with the balance pipe through quick connectors.

5. A de-dusting system for a crushing and screening plant as claimed in claim 1, characterised in that, the dust removal system can carry multiple working parts.

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