Double-layer external negative pressure type bulk machine

Abstract

The utility model relates to a double-layer external negative pressure type bulk machine which comprises a bulk machine body, a negative pressure source and a telescopic material part, the discharging end of the bulk machine body is connected with the top end of the telescopic material part, the telescopic material part comprises a telescopic bag and a telescopic sleeve piece, and a negative pressure dust collection cavity channel is formed between the telescopic bag and the telescopic sleeve piece. A plurality of annular supporting blocks are arranged on the outer side of the telescopic sleeve piece and arranged in the vertical direction of the telescopic cylinder, the adjacent annular supporting blocks are fixedly connected through a plurality of third steel wire ropes, and the annular supporting block located on the uppermost portion is fixedly connected with the top side of the telescopic sleeve piece through a first connecting rod. The lowermost annular supporting block is fixedly connected with the bottom side of the telescopic sleeve piece through a second connecting rod. According to the utility model, the wrinkles can be effectively prevented from continuously extending inwards to seal the negative pressure dust collection cavity channel, so that the influence on negative pressure generated by a negative pressure source to extract splashing particles during blanking is avoided, and the particles are effectively adsorbed and removed.

Description

Technical Field

[0001] The utility model relates to the technical field of bulk equipment, in particular to a double-layer external negative pressure bulk loader. Background Art

[0002] Bulk loaders are often used to unload fly ash from ash silos into tank trucks for removal for recycling. Typically, a telescopic assembly on the ash bulker guides the fly ash into the tank truck. Because fly ash contains particulate matter, the telescopic assembly typically utilizes a double-layered telescopic sleeve. A negative pressure source creates negative pressure within the sleeve to absorb the particulate matter.

[0003] The telescopic kit can be extended and retracted to adjust the height and guide the fly ash into the tanker. However, when the kit is retracted, the shrinking fabric will wrinkle within the kit layer, blocking the space within the layer, affecting the negative pressure within the layer and reducing the adsorption effect of particulate matter. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a double-layer external negative pressure bulk loader. The specific technical solution is as follows:

[0005] A double-layer external negative pressure bulk loader includes a bulk loader body, a negative pressure source and a telescopic material part. The discharge end of the bulk loader body is connected to the top of the telescopic material part. The telescopic material part includes a telescopic bag and a telescopic kit located inside the telescopic bag. A negative pressure dust suction cavity is formed between the telescopic bag and the telescopic kit. The negative pressure source generates negative pressure in the negative pressure dust suction cavity. A plurality of annular support blocks are arranged on the outside of the telescopic kit, and the plurality of annular support blocks are arranged in the upper and lower directions of the telescopic cylinder. Adjacent annular support blocks are fixedly connected by a plurality of third steel ropes. The annular support block located at the top is fixedly connected to the top side of the telescopic kit through a first connecting rod, and the annular support block located at the bottom is fixedly connected to the bottom side of the telescopic kit through a second connecting rod.

[0006] As an improvement of the above technical solution: the telescopic kit includes a plurality of telescopic cylinders that are sequentially connected, and the diameters of the plurality of telescopic cylinders increase sequentially from top to bottom. The bottom of the upper telescopic cylinder has a limiter, and the limiter is arranged inside the lower telescopic cylinder. The outer sides of adjacent telescopic cylinders are connected by a second steel wire rope.

[0007] As an improvement of the above technical solution: the top of the telescopic cylinder located at the top has a top mounting flange, and the telescopic cylinder is installed on the discharge end of the bulk loader body through the top mounting flange; the bottom of the telescopic cylinder located at the bottom has a bottom mounting flange, and the bottom mounting flange is fixedly connected to the telescopic bag through a connecting bracket.

[0008] As an improvement of the above technical solution: a plurality of fixing rings are arranged in the up and down directions on the outside of the telescopic bag, a plurality of first steel ropes are fixedly connected to at least one of the fixing rings, and the other end of the first steel rope is connected to the rope reel on the bulk loader body.

[0009] As an improvement to the above technical solution: the inner diameter of the annular support block is larger than the outer diameter of the telescopic cylinder located at the bottom, and a gap is formed between the inner side of the annular support block and the outer side of the telescopic cylinder.

[0010] Beneficial effects of the utility model:

[0011] When the telescopic material part is contracted to adjust its entire height to facilitate material discharge, the first steel wire rope is reeled in by running the rope reel, so that the telescopic bag and multiple telescopic cylinders can be contracted synchronously. During the synchronous contraction, multiple annular support blocks located outside the telescopic cylinders can be gathered together. When the telescopic bag contracts, the wrinkles generated inward can be supported and resisted by multiple support parts, so as to prevent the wrinkles from continuing to extend inward and closing the negative pressure suction cavity, thereby avoiding affecting the negative pressure source to generate negative pressure to extract the splashed particles during material discharge, thereby effectively absorbing and removing the particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the telescopic kit in the present invention;

[0014] Figure 3 This is a schematic diagram of the connection structure between the telescopic kit and the second steel wire rope in the utility model.

[0015] Figure numerals: 1. telescopic bag; 100. negative pressure dust suction chamber; 2. fixing ring; 21. first steel wire rope; 3. telescopic cylinder; 31. second steel wire rope; 4. third steel wire rope; 5. annular support block; 51. first connecting rod; 6. top mounting flange; 7. bottom mounting flange; 71. connecting bracket. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] Example

[0018] Please refer to Figure 1-Figure 3, a double-layer external negative pressure bulk loader includes a bulk machine body, a negative pressure source and a telescopic material part. Specifically, the bulk machine body adopts the existing technology, which will not be repeated in this application. The discharge end of the bulk machine body is connected to the top of the telescopic material part. The telescopic material part includes a telescopic bag 1 and a telescopic kit located inside the telescopic bag 1. A negative pressure dust suction cavity 100 is formed between the telescopic bag 1 and the telescopic kit. The negative pressure source generates negative pressure in the negative pressure dust suction cavity 100. A plurality of annular support blocks 5 are arranged on the outside of the telescopic kit, and the plurality of annular support blocks 5 are arranged in the upper and lower directions of the telescopic cylinder 3.

[0019] Specifically, the up and down directions refer to Figure 1 In the Z direction shown, adjacent annular support blocks 5 are fixedly connected by multiple third steel wire ropes 4, and multiple third steel wire ropes 4 are evenly distributed on the annular support blocks 5. The annular support block 5 located at the top is fixedly connected to the top side of the telescopic kit through the first connecting rod 51, and the annular support block 5 located at the bottom is fixedly connected to the bottom side of the telescopic kit through the second connecting rod. Specifically, a filter element for particulate matter can be provided in the negative pressure dust collection cavity 100, and the filter element can be a filter bag or other filter with filtering function in the prior art.

[0020] In an optional embodiment: the telescopic kit includes a plurality of telescopic cylinders 3 that are sequentially connected, and the diameters of the plurality of telescopic cylinders 3 increase sequentially from top to bottom. The bottom of the upper telescopic cylinder 3 has a limiter, and the limiter is arranged inside the next telescopic cylinder 3. Specifically, the limiter can limit each telescopic cylinder 3 to prevent adjacent telescopic cylinders 3 from falling off. When the limiter is set, when the extension between adjacent telescopic cylinders 3 reaches the maximum limit, the limiter can seal the gap between adjacent telescopic cylinders 3 to prevent dust from entering. The outer sides of adjacent telescopic cylinders 3 are connected by a second steel wire rope 31, thereby preventing the telescopic cylinders 3 from falling off from each other.

[0021] In an optional embodiment, the top of the telescopic cylinder 3, located at the top, has a top mounting flange 6, which is mounted to the discharge end of the bulk loader body via the top mounting flange 6. The bottom of the telescopic cylinder 3, located at the bottom, has a bottom mounting flange 7, which is fixedly connected to the telescopic bag 1 via a connecting bracket 71. A discharge funnel can be connected to the bottom end of the bottom mounting flange 7 to facilitate material discharge. Furthermore, the negative pressure source can be a fan or vacuum pump, the exhaust end of which is connected to the negative pressure suction chamber 100 via a pipe, thereby generating negative pressure within the negative pressure suction chamber 100, thereby extracting particulate matter through the negative pressure when the telescopic bag is discharged.

[0022] In an optional embodiment: a plurality of fixed rings 2 are arranged in the upper and lower directions on the outside of the telescopic bag 1, and a plurality of first steel ropes 21 are fixedly connected to at least one of the fixed rings 2. The other end of the first steel rope 21 is connected to the rope reel on the bulk loader body. By running the rope reel to drive the first steel rope 21, the telescopic bag 1 can be driven to expand and contract, thereby driving the telescopic kit to expand and contract, so that the entire telescopic material part can be expanded and contracted.

[0023] In an optional embodiment: the inner diameter of the annular support block 5 is larger than the outer diameter of the telescopic cylinder 3 located at the bottom, and a gap is formed between the inner side of the annular support block 5 and the outer side of the telescopic cylinder 3, through which the normal circulation of the negative pressure dust collection cavity 100 can be facilitated.

[0024] Specifically, when the telescopic material part is contracted to adjust its entire height to facilitate material discharge, the first steel wire rope 21 is pulled by running the rope reel to allow the telescopic bag 1 and multiple telescopic cylinders 3 to contract synchronously. During the synchronous contraction, the multiple annular support blocks 5 located outside the telescopic cylinder 3 can be gathered together. When the telescopic bag 1 contracts, the wrinkles generated inward can be supported and resisted by multiple support parts, and the wrinkles are prevented from continuing to extend inward to close the negative pressure suction cavity 100 as much as possible, thereby avoiding affecting the negative pressure source to generate negative pressure to extract the splashed particles during material discharge, thereby effectively adsorbing and removing the particles.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-layer external negative pressure bulk loader, comprising a bulk loader body, a negative pressure source and a telescopic material portion, wherein the telescopic material portion comprises a telescopic bag (1) and a telescopic kit located inside the telescopic bag (1), a negative pressure dust collection cavity (100) is formed between the telescopic bag (1) and the telescopic kit, and is characterized in that: A plurality of annular support blocks (5) are arranged on the outside of the telescopic kit, and the plurality of annular support blocks (5) are arranged in an upper and lower direction toward the telescopic cylinder (3). Adjacent annular support blocks (5) are fixedly connected by a plurality of third steel wire ropes (4). The annular support block (5) located at the top is fixedly connected to the top side of the telescopic kit via a first connecting rod (51), and the annular support block (5) located at the bottom is fixedly connected to the bottom side of the telescopic kit via a second connecting rod.

2. The double-layer external negative pressure bulk loader according to claim 1, characterized in that: The telescopic kit comprises a plurality of telescopic cylinders (3) which are sleeved in sequence, wherein the diameters of the plurality of telescopic cylinders (3) increase in sequence from top to bottom, the bottom of the upper telescopic cylinder (3) is provided with a limiting member, and the limiting member is located inside the lower telescopic cylinder (3), and the outer sides of adjacent telescopic cylinders (3) are connected by a second steel wire rope (31).

3. The double-layer external negative pressure bulk loader according to claim 2, characterized in that: The top of the telescopic cylinder (3) located at the top is provided with a top mounting flange (6), and the telescopic cylinder (3) is installed on the discharge end of the bulk loader body through the top mounting flange (6). The bottom of the telescopic cylinder (3) located at the bottom is provided with a bottom mounting flange (7), and the bottom mounting flange (7) is fixedly connected to the telescopic bag (1) through a connecting bracket (71).

4. The double-layer external negative pressure bulk loader according to claim 3, characterized in that: A plurality of fixing rings (2) are arranged in an up-down direction on the outside of the telescopic bag (1), and a plurality of first steel wire ropes (21) are fixedly connected to at least one of the fixing rings (2), and the other end of the first steel wire rope (21) is connected to a rope reel on the bulk loader body.

5. The double-layer external negative pressure bulk loader according to claim 1, characterized in that: The inner diameter of the annular support block (5) is larger than the outer diameter of the telescopic cylinder (3) located at the bottom, and a gap is formed between the inner side of the annular support block (5) and the outer side of the telescopic cylinder (3).

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