A clog-proof coal sampling device for furnaces

Abstract

This utility model provides an anti-clogging coal sampling device for furnaces, relating to the field of sampling tools. The anti-clogging coal sampling device includes a height lifting section, a horizontal conveying section, and an insertion sampling section. The insertion sampling section is located at the bottom of the device and communicates with the feed end of the height lifting section. The horizontal conveying section is located below the outlet of the height lifting section. Both the height lifting section and the horizontal conveying section are driven by conveyor belts, and the insertion sampling section uses a screw conveyor. This anti-clogging coal sampling device, by limiting the screw conveyor to coal sampling only at the bottom of the device and using belt drive for coal conveying, reduces the length of the screw conveyor, thus reducing the possibility of clogging.

Description

Technical Field

[0001] This utility model relates to the field of sampling tool technology, specifically to an anti-clogging coal sampling device for furnaces. Background Technology

[0002] The incoming coal comes in a complex and diverse range of types and qualities, often containing large chunks of gangue and peat. This causes the sampling heads of the coal truck sampling machines entering the plant to be frequently subjected to overload. Due to the high moisture and peat content in the incoming coal, along with a large amount of lumpy gangue, the sampling heads of the sampling machines frequently become clogged and jammed, resulting in a high failure rate of the sampling machines, a heavy workload for on-site maintenance personnel, and prolonged equipment downtime, which seriously affects the fuel sampling and preparation work at the plant.

[0003] CN221571973U discloses a coal sampling device for furnace feed. The device includes: a coal conveying pipe with an end cap at one end and a sampling port connected to a coal hopper at the other end; a handwheel located at the end of the end cap away from the coal conveying pipe; a shaftless screw disposed within the coal conveying pipe, with one end extending to the sampling port and the other end passing through the end cap and connected to the handwheel; a coal outlet located on the coal conveying pipe; and a baffle closable at the coal outlet. This coal sampling device not only facilitates coal sampling but also obtains accurate coal samples reflecting the coal quality entering the furnace. Although the shaftless screw increases the internal space of the coal conveying pipe, it still employs a screw conveying method for sampling and transmission, resulting in a long transmission distance and making it difficult to effectively prevent jamming. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-clogging coal sampling device for furnaces, which solves the problem of easy clogging of sampling devices mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a blockage-proof coal sampling device for furnaces, comprising a height lifting section, a horizontal conveying section, and an insertion sampling section. The insertion sampling section is located at the bottom of the device and is connected to the feed end of the height lifting section. The horizontal conveying section is located below the outlet of the height lifting section. Both the height lifting section and the horizontal conveying section are driven by a conveyor belt, and the insertion sampling section is driven by a screw conveyor.

[0007] Furthermore, the height lifting unit includes a box body, inside which two sets of conveyor belts with opposite inclination directions are inclinedly arranged. Inside the box body, a baffle is provided at the lowest end of the conveyor belt. The highest end of a single conveyor belt is located above and to the side of the lowest end of the next conveyor belt. A chute is provided between the highest end of a single conveyor belt and the lowest end of the next conveyor belt.

[0008] Furthermore, the insertion sampling unit is hoisted, and the insertion sampling unit includes an outer sleeve. A hoisting ring is fixedly installed on the outer surface of the outer sleeve. An auger plate is rotatably connected inside the outer sleeve. A power source for driving the auger plate to rotate is fixedly installed at the discharge end of the outer sleeve. The outer sleeve and the power source are always sleeved inside the box and located above the feed inlet of the height lifting unit.

[0009] Furthermore, the outer sleeve of the insertion sampling part has a notch on the side, and an arc-shaped plate that fits against the inner wall of the outer sleeve is provided inside the notch. The arc-shaped plate is fixed to the outer sleeve by wing plate bolts on both sides.

[0010] Furthermore, the horizontal conveyor belt includes a conveyor belt positioned below the discharge port of the height lifting section, with a rotatable conveyor belt connected to the lower end of the conveyor belt.

[0011] Furthermore, the box body is equipped with a support frame inside, and a correction bracket for supporting the conveyor belt and the correction conveyor belt is provided above the support frame. The box body is equipped with a drive unit for driving the conveyor belt.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This anti-clogging coal sampling device for furnaces is designed to restrict the auger screw elevator to the bottom of the device for coal sampling, while using belt drive during coal transportation. This design reduces the length of the auger screw elevator and the possibility of clogging.

[0014] 2. This anti-clogging coal sampling device has a notch on the side of the outer sleeve of the sampling insertion part. Inside the notch, there is an arc-shaped plate that fits against the inner wall of the outer sleeve. The arc-shaped plate is fixed to the outer sleeve by bolts on both sides of the wing plates. By separating the two sides of the wing plates, the arc-shaped plate can be removed, thus exposing the notch and allowing the sampling insertion part to be inspected and repaired after a blockage occurs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the interior of the housing of this utility model;

[0017] Figure 3 This is a schematic diagram of the box connection of this utility model;

[0018] Figure 4 This is a schematic diagram of the conveyor belt connection of this utility model;

[0019] Figure 5 This is a half-sectional schematic diagram of the sampling section inserted in this utility model.

[0020] The components are as follows: 1. Height lifting section; 3. Horizontal conveying section; 4. Insertion sampling section; 101. Box body; 102. Conveyor belt; 103. Baffle; 104. Chute plate; 105. Support; 106. Correction bracket; 107. Drive unit; 401. Outer sleeve; 402. Lifting ring; 403. Screwdriver plate; 404. Power source; 405. Notch; 406. Arc plate; 407. Wing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] See Figures 1-5 A clog-resistant coal sampling device for furnaces includes a height lifting section 1, a horizontal conveying section 3, and an insertion sampling section 4. The insertion sampling section 4 is located at the bottom of the device and is connected to the feed end of the height lifting section 1. The horizontal conveying section 3 is located below the outlet of the height lifting section 1. Both the height lifting section 1 and the horizontal conveying section 3 are driven by conveyor belts. The insertion sampling section 4 is a screw conveyor. In this technical solution, by restricting the screw conveyor to the bottom of the device for coal sampling, and using belt drive during coal conveying, the length of the screw conveyor can be reduced, thus reducing the possibility of blockage.

[0023] The height lifting unit 1 includes a housing 101. Two sets of conveyor belts 102 with opposite inclination directions are inclinedly arranged inside the housing 101. A baffle 103 is provided at the lowest end of the conveyor belts 102 inside the housing 101. The highest end of a single conveyor belt 102 is located to the side and above the lowest end of the next conveyor belt 102. A chute 104 is provided between the highest end of a single conveyor belt 102 and the lowest end of the next conveyor belt 102. The chute 104 is inclined to prevent material from falling off. Through such alternating conveying and tilting the conveyed material to the side and downward at the highest point, the conveyed material can be lifted to a certain height step by step.

[0024] The insertion sampling unit 4 is hoisted and includes an outer sleeve 401. A hoisting ring 402 is fixedly installed on the outer surface of the outer sleeve 401. An auger plate 403 is rotatably connected inside the outer sleeve 401. A power source 404 for driving the auger plate 403 to rotate is fixedly installed at the discharge end of the outer sleeve 401. The outer sleeve 401 and the power source 404 are always sleeved inside the housing 101 and located above the feed inlet of the height lifting unit 1. The insertion sampling unit 4 is hoisted by the hoisting mechanism. During the insertion process, the insertion sampling unit 4 can be moved as a whole to insert into the sampled object. Similarly, the outer sleeve 401 can always drop the discharged conveyed material onto the conveyor belt 102.

[0025] The outer sleeve 401 of the insertion sampling section 4 has a notch 405 on its side. Inside the notch 405 is an arc-shaped plate 406 that fits against the inner wall of the outer sleeve 401. The arc-shaped plate 406 is fixed to the outer sleeve 401 by bolts on the two side wing plates 407. By separating the two side wing plates 407 and then removing the arc-shaped plate 406, the notch 405 can be exposed, so that the insertion sampling section 4 can be repaired after a blockage occurs.

[0026] The horizontal conveyor belt 102 includes a conveyor belt 102 disposed below the discharge port of the height lifting section 1. A rotatable conveyor belt 102 is connected to the lower end of the tail end of the conveyor belt 102. The rotatable conveyor belt 102 is rotated relative to the support unit by its fixing unit. The hinge shaft of the fixing unit is located on the side where the two conveyor belts 102 intersect. The transmission direction can be changed by setting the rotating conveyor belt 102.

[0027] The housing 101 has a support 105 inside, and a guide bracket 106 is provided above the support 105 to support the conveyor belt 102 and the guide conveyor belt 102. Since the conveyor belt 102 carries heavy objects, the guide bracket 106 is required. The housing 101 has a drive unit 107 on the outside to drive the conveyor belt 102. The drive unit 107 can be a drive shaft of the parallel conveyor belt 102 driven by a sprocket drive, or it can be a motor that directly drives each conveyor belt 102.

[0028] In use, the device is set at the sampling position, and the insertion sampling part 4 is inserted into the inside of the sampled object by the hoisting mechanism. Then, the sampled object is taken out by the rotating and descending auger plate 403 and placed above the internal conveyor belt 102 of the height lifting part 1. The sampled object is lifted to a certain height by the internal conveyor belts 102 with different inclination directions and overlapping ends, and then transferred to the designated position by the horizontal conveyor part 3.

[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clogging-preventing coal sampling device for entering a furnace, comprising a height lifting part (1), a horizontal conveying part (3) and an insertion sampling part (4), characterized in that: The insertion sampling part (4) is located at the bottom of the device and is connected to the feed end of the height lifting part (1). The horizontal conveying part (3) is located below the outlet of the height lifting part (1). Both the height lifting section (1) and the horizontal conveying section (3) are driven by a transmission belt, and the insertion sampling section (4) is driven by a screw conveyor.

2. The anti-blocking coal sampling device into the furnace according to claim 1, characterized in that: The height lifting unit (1) includes a box (101), inside which two sets of conveyor belts (102) with opposite inclination directions are inclinedly arranged. Inside the box (101), a baffle (103) is provided at the lowest end of the conveyor belt (102). The highest end of a single conveyor belt (102) is located above the lowest end of the next conveyor belt (102). A chute (104) is provided between the highest end of the single conveyor belt (102) and the lowest end of the next conveyor belt (102).

3. The anti-blocking coal sampling device into the furnace according to claim 1 or 2, characterized in that: The insertion sampling part (4) is hoisted. The insertion sampling part (4) includes an outer sleeve (401). A hoisting ring (402) is fixedly installed on the outer surface of the outer sleeve (401). An auger plate (403) is rotatably connected inside the outer sleeve (401). A power source (404) for driving the auger plate (403) to rotate is fixedly installed at the discharge end of the outer sleeve (401). The outer sleeve (401) and the power source (404) are always sleeved inside the box (101) and located above the feed inlet of the height lifting part (1).

4. The anti-blocking coal sampling device into the furnace according to claim 3, characterized in that: The outer sleeve (401) of the insertion sampling part (4) has a notch (405) on the side. Inside the notch (405) is an arc-shaped plate (406) that fits against the inner wall of the outer sleeve (401). The arc-shaped plate (406) and the outer sleeve (401) are fixed together by bolts from the wing plates (407) on both sides.

5. The anti-blocking coal sampling device into the furnace according to claim 4, characterized in that: The horizontal conveyor belt (102) includes a conveyor belt (102) disposed below the discharge port of the height lifting section (1), and a conveyor belt (102) that can rotate relative to the conveyor belt (102) is connected below the tail end of the conveyor belt (102).

6. The anti-blocking coal sampling device into the furnace according to claim 5, characterized in that: The housing (101) is equipped with a support (105) inside, and a correction bracket (106) for supporting the conveyor belt (102) and the correction conveyor belt (102) is provided above the support (105). The housing (101) is equipped with a drive unit (107) for driving the conveyor belt (102) to work.

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