Belt conveyor tail flying dust treatment device

Abstract

The utility model discloses a tail raised dust treatment device for a belt conveyor, which relates to the technical field of material conveying and comprises a tail relief chamber and a blanking barrel which are arranged on the left side and the right side of a micro-power dust removal function chamber, and a trestle micro-ring separation chamber is arranged on the other side of the blanking barrel. The micro-power dust removal function chamber, the tail relieving chamber, the discharging barrel and the trestle micro-ring separation chamber are all arranged on the material guide groove, the unpowered dust removal function chamber is arranged above the other end, away from the tail relieving chamber, of the material guide groove, the unpowered dust removal function chamber is connected with the unpowered dust remover through a dust suction pipe, and the unpowered dust remover is connected with the discharging barrel through a dust remover return pipe. The micro-power dust removal function chamber is remotely connected with the micro-power dust remover control box, dust is subjected to pressure reduction filtration and step-by-step sedimentation in combination with the aerodynamic principle, the dust is made to settle back into raw materials, secondary pollution is avoided, meanwhile, secondary sedimentation treatment is conducted on the dust through micro-power dust removal, and the micro-power dust remover control box is connected into a platform for centralized control according to site requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a dust treatment device at the tail of a belt conveyor. Background Art

[0002] In the prior art, for example, CN207792175U discloses an unpowered dust removal device, which includes at least one coal drop bucket, a closed guide trough on a conveyor belt, a swirl channel above the guide trough in the forward direction of the conveyor belt and communicating with the coal drop bucket, a primary automatic circulation decompression device and a secondary automatic circulation decompression device arranged in sequence in the forward direction of the conveyor belt, and a multifunctional dust removal chamber provided at the connection between the swirl channel and the guide trough, so that the coal is effectively decelerated and intercepted before entering the swirl channel, thereby improving the dust removal effect and efficiency, avoiding the use of a water spray-assisted dust removal method, thereby avoiding water resource waste and coal freezing in cold environments;

[0003] However, the bottom dust collector is not enclosed with a hood, and its dust collection ability is poor, resulting in low processing efficiency. In addition, a large amount of dust is easily attached to the corners of the rotary channel, which increases the difficulty of dust circulation.

[0004] CN206950870U discloses an unpowered dust removal system, including a coal drop pipe, a balanced return pipe, a coal dust separation device, a sealed material guide chute, and a conveyor belt. High-expansion foam is filled in the dust curtain space to increase the system's airtightness. The foam's dust-reducing properties are utilized to reduce the amount of dust in the dust removal space. The foam's low water consumption also reduces wastewater generation, thereby improving the dust removal efficiency of the unpowered dust collector and saving costs.

[0005] However, the waste discharged from the foam dust collector needs to be dealt with in a timely manner, otherwise it will cause pollution. When cleaning corrosive combustible materials, chemical adhesion migrates into the water, requiring additional maintenance and treatment of the waste discharge pipe. Utility Model Content

[0006] The purpose of the utility model is to provide a dust treatment device at the tail of a belt conveyor, which reduces the energy consumption of dust treatment, improves the dust treatment efficiency and belt transmission efficiency, effectively controls dust and overflow dust, avoids secondary dust pollution, improves the environment, and achieves long-term personnel stationing conditions.

[0007] To achieve the above-mentioned purpose, the utility model provides a dust treatment device at the tail of a belt conveyor, comprising a tail relief chamber and a discharge barrel arranged on the left and right sides of a micro-powered dust removal function chamber, a trestle micro-ring separation chamber being arranged on the other side of the discharge barrel, the micro-powered dust removal function chamber, the tail relief chamber, the discharge barrel and the trestle micro-ring separation chamber being arranged on a material guide trough, and an unpowered dust removal function chamber being arranged above the other end of the material guide trough away from the tail relief chamber, the unpowered dust removal function chamber being connected to an unpowered dust collector through a dust suction pipe, the unpowered dust collector being connected to the discharge barrel through a dust collector return pipe, and the micro-powered dust removal function chamber being remotely connected to a micro-powered dust collector control box.

[0008] Preferably, a detachable cover is provided on the outside of the unpowered dust removal function chamber, the detachable cover is arranged in an umbrella shape, the dust suction pipe and the detachable cover are connected by a plug-in plate, the connecting part of the dust suction pipe and the detachable cover is arranged as an oblique inlet, and a sealing gasket is installed at the inlet.

[0009] Preferably, when the material particle size is less than 3mm, a detachable hood with a wind speed of 0.5-1m / s is selected; when the material particle size is not less than 3mm, a detachable hood with a wind speed of 0.4-3m / s is selected, and the expansion angle of the detachable hood is not greater than 60°.

[0010] Preferably, the material guide trough includes a side panel support frame, a material guide trough upper cover plate and two material guide trough side panels. Two detachable PE slides are symmetrically arranged on both sides of the side panel support frame. The two detachable PE slides and the two material guide trough side panels are respectively connected by bolts. The two material guide trough side panels and the material guide trough upper cover plate are fixed by rivets. The two material guide trough side panels are respectively provided with inner layer seals.

[0011] Preferably, a belt is provided between the two inner seals and the two detachable PE slides, a buffer bed is provided below the belt, the buffer bed is provided as a semi-roller structure, and the semi-roller structure is fixed to the side panel support frame through the PE support frame.

[0012] Preferably, the total length of the guide trough is set to be no less than 15m.

[0013] Preferably, the feed opening of the dust collector return pipe is funnel-shaped.

[0014] Preferably, the unpowered dust collector is an AND-240 pulse bag dust collector.

[0015] Therefore, the utility model adopts a belt conveyor tail dust treatment device of the above structure, which has the following beneficial effects:

[0016] (1) High dust removal efficiency: It adopts double-shell sealed non-powered material guide chute and cooperates with pulse bag dust collector to effectively control dust and overflow dust, improve the environment, and achieve long-term personnel stationing conditions;

[0017] (2) Low power consumption operation: Through the trestle micro-ring separation chamber, the dust is decompressed and filtered and gradually settled. A low-power negative pressure suction fan is used to adsorb the dust on the filter bag and finally settle back into the original material, reducing the operating power consumption and operating costs.

[0018] (3) Remote control: The micro-power dust removal function room is remotely connected to the micro-power dust collector control box, and can be connected to the platform for control according to on-site needs to effectively adjust the wind speed and air volume of the secondary sedimentation.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a dust treatment device at the tail of a belt conveyor according to the utility model;

[0021] Figure 2 The utility model is a cross-sectional view of a belt conveyor with a dust treatment device at the tail of the belt conveyor.

[0022] Among them: 1. Tail relief chamber; 2. Micro-powered dust removal function chamber; 3. Unloading barrel; 4. Trestle micro-ring separation chamber; 5. Unpowered dust removal function chamber; 6. Material guide trough; 601. Material guide trough upper cover; 602. Material guide trough side panel; 603. Buffer bed; 604. Side panel support frame; 605. Belt; 606. Inner seal; 607. Removable PE slide; 608. PE support frame; 7. Unpowered dust collector; 8. Dust collector return pipe; 9. Dust suction pipe; 10. Removable hood. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below through the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1As shown, the utility model provides a dust treatment device for the tail of a belt conveyor, comprising a tail relief chamber 1 and a discharge barrel 3 arranged on the left and right sides of a micro-powered dust removal function chamber 2, a trestle micro-ring separation chamber 4 is arranged on the other side of the discharge barrel 3, the micro-powered dust removal function chamber 2, the tail relief chamber 1, the discharge barrel 3 and the trestle micro-ring separation chamber 4 are all arranged on a guide trough 6, and an unpowered dust removal function chamber 5 is arranged above the other end of the guide trough 6 away from the tail relief chamber 1, the unpowered dust removal function chamber 5 is connected to the unpowered dust collector 7 through a dust suction pipe 9, the unpowered dust collector 7 is connected to the discharge barrel 3 through a dust collector return pipe 8, and the micro-powered dust removal function chamber 2 is remotely connected to the micro-powered dust collector control box;

[0026] The unpowered dust collector 7 is an AND-240 pulse bag dust collector. A detachable hood 10 is provided on the outside of the unpowered dust removal function chamber 5. The detachable hood 10 is umbrella-shaped. The dust suction pipe 9 and the detachable hood 10 are connected by a plug-in plate. The connecting part of the dust suction pipe 9 and the detachable hood 10 is designed as a beveled inlet, and a sealing gasket is installed at the inlet. When the material particle size is less than 3 mm, a detachable hood 10 with a wind speed of 0.5-1 m / s is selected. When the material particle size is not less than 3 mm, a detachable hood 10 with a wind speed of 0.4-3 m / s is selected. The expansion angle of the detachable hood 10 is not greater than 60°.

[0027] like Figure 2 As shown, the material guide trough 6 includes a side panel support frame 604, a material guide trough upper cover plate 601 and two material guide trough side panels 602. Two detachable PE slides 607 are symmetrically arranged on both sides of the side panel support frame 604. The two detachable PE slides 607 and the two material guide trough side panels 602 are respectively connected by bolts. The two material guide trough side panels 602 and the material guide trough upper cover plate 601 are fixed by rivets. Inner layer seals 606 are respectively provided on the two material guide trough side panels 602; a belt 605 is provided between the two inner layer seals 606 and the two detachable PE slides 607, and a buffer bed 603 is provided under the belt 605. The buffer bed 603 is a semi-roller structure, and the semi-roller structure is fixed to the side panel support frame 604 through a PE support frame 608; the total length of the material guide trough 6 is 15m.

[0028] The specific parameters of AND-240 pulse bag dust collector are:

[0029] (1) The air volume is 20000m 3 / h, the total filtration area is 240m 3 , full filtration wind speed is 1.2m / min, dust removal efficiency ≥99.8%;

[0030] (2) There are 240 filter bags inside, with a size of 130×2500mm. The allowable operating temperature of the filter bags is 120℃ and below. The filter bags are made of 550g anti-static coated polyester needle felt, and the filter bags are sealed and fixed by spring expansion rings;

[0031] (3) The filter cage specification is 120×2950mm, the filter cage is made of carbon steel, and the filter cage surface is galvanized;

[0032] (4) The ash discharge valve is a gravity ash discharge valve.

[0033] Example

[0034] like Figure 1 As shown, after the material passes through the discharge barrel 3 and enters the guide chute 6, a large amount of dust is generated due to the impact. First, the dust-gas mixture is decompressed and filtered through the trestle micro-ring separation chamber 4 under the action of mutual collision and potential energy, and then the unpowered dust removal function chamber 5 further collects and settles the dust. The dust enters the unpowered dust collector 7 through the dust suction pipe 9, and the dust is adsorbed on the small filter bag of the unpowered dust collector 7. Finally, it is transported back to the guide chute 6 through the dust collector return pipe 8. At the same time, a micro-powered dust removal function chamber 2 is set on the left side of the discharge barrel 3. By adjusting the parameters of the micro-powered dust collector control box, the overflowed dust is subjected to point settlement treatment.

[0035] Therefore, the utility model adopts a dust treatment device at the tail of a belt conveyor with the above structure, adopts a double-shell sealed unpowered material guide trough, and cooperates with a pulse bag dust collector to effectively control dust and overflow dust, improve the environment, and achieve long-term personnel stationing conditions; through the trestle micro-ring separation chamber, pressure reduction filtration and step-by-step sedimentation are carried out, and a low-power negative pressure suction fan is used to adsorb dust on the filter bag, and finally settle back into the original material, reducing operating power consumption and operating costs; the micro-power dust removal function room is remotely connected to the micro-power dust collector control box, and can be connected to the platform for control according to on-site needs, and the wind speed and air volume of the secondary sedimentation are effectively adjusted.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A dust treatment device at the tail of a belt conveyor, characterized by: It includes a tail relief chamber and a discharge barrel arranged on the left and right sides of the micro-powered dust removal function chamber, a trestle micro-ring separation chamber is arranged on the other side of the discharge barrel, the micro-powered dust removal function chamber, the tail relief chamber, the discharge barrel and the trestle micro-ring separation chamber are all arranged on the guide trough, and an unpowered dust removal function chamber is arranged above the other end of the guide trough away from the tail relief chamber. The unpowered dust removal function chamber is connected to the unpowered dust collector through a dust suction pipe, the unpowered dust collector is connected to the discharge barrel through a dust collector return pipe, and the micro-powered dust removal function chamber is remotely connected to the micro-powered dust collector control box; The guide chute includes a side plate support frame, a guide chute upper cover plate and two guide chute side plates. Two detachable PE slides are symmetrically arranged on both sides of the side plate support frame. The two detachable PE slides and the two guide chute side plates are respectively connected by bolts. The two guide chute side plates and the guide chute upper cover plate are fixed by rivets. The two guide chute side plates are respectively provided with inner layer seals. A belt is arranged between the two inner seals and the two detachable PE slides, and a buffer bed is arranged under the belt. The buffer bed is arranged as a semi-roller structure, and the semi-roller structure is fixed to the side plate support frame through a PE support frame.

2. The dust treatment device at the tail of a belt conveyor according to claim 1, characterized in that: A detachable hood is provided on the outside of the unpowered dust removal function room. The detachable hood is arranged in an umbrella shape. The dust suction pipe and the detachable hood are connected by a plug-in plate. The connecting part of the dust suction pipe and the detachable hood is arranged as an oblique inlet, and a sealing gasket is installed at the inlet.

3. The dust treatment device at the tail of a belt conveyor according to claim 2, characterized in that: When the material particle size is less than 3mm, select a detachable hood with a wind speed of 0.5-1m / s. When the material particle size is not less than 3mm, select a detachable hood with a wind speed of 0.4-3m / s. The expansion angle of the detachable hood is not more than 60°.

4. The dust treatment device at the tail of a belt conveyor according to claim 3, characterized in that: The total length of the guide trough is set to be no less than 15m.

5. The dust treatment device at the tail of a belt conveyor according to claim 1, characterized in that: The feed port of the dust collector return pipe is funnel-shaped.

6. The dust treatment device at the tail of a belt conveyor according to claim 1, characterized in that: The unpowered dust collector is an AND-240 pulse bag dust collector.

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