Proportional coal blending control device

Abstract

The utility model provides a proportional coal blending control device, and belongs to the technical field of control devices. Comprising a plurality of material containing hoppers which are used for storing coal materials of different types or qualities; the plurality of sleeves are respectively positioned below the plurality of material containing funnels, a feeding hole and a discharging hole are formed in each sleeve, and the feeding hole in each sleeve is in butt joint with the discharging hole of the corresponding material containing funnel. According to the utility model, the plurality of material containing funnels, the sleeve, the spiral feeding rod and the weighing conveying belt are matched, so that accurate metering and conveying control of coal materials of different types and qualities are realized, and the effect of accurate coal blending is achieved; and through the cooperation of the speed regulating box, the speed regulating gear, the chain, the transmission rod, the connecting rod, the bevel gear and the regulating push rod, the rotating speed of the spiral feeding rod is flexibly regulated, and the purpose of flexibly controlling the coal blending speed is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to control device technical field, especially relate to a proportion coal blending control device. BACKGROUND

[0002] Coal as an important energy resource, has a wide application in many industries, such as electric power, steel, chemical industry etc. In the production process of these industries, different kinds of coal of different quality are often mixed according to a certain proportion to meet the requirements of production process. Coal blending not only can optimize the combustion performance of coal and improve energy utilization efficiency, but also can reduce production cost to a certain extent.

[0003] However, many traditional coal blending equipment in actual operation, due to lack of accurate measurement and control mechanism, it is difficult to ensure that different coal is mixed according to the accurate proportion. Some equipment relies on relatively rough volume measurement to determine the proportion of coal, but the density of coal is quite different, and pure volume measurement cannot guarantee the accuracy of the proportion. In addition, in the conveying link of coal, without the device for accurately regulating the conveying speed, it is also easy to cause the deviation of coal blending proportion. This inaccurate coal blending proportion will directly affect the stability of the production process, may lead to energy waste, product quality fluctuation and environmental pollution and a series of problems. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a proportion coal blending control device to solve the technical problems of inaccurate coal blending proportion and inflexible coal blending speed regulation in the existing coal blending equipment.

[0005] Technical solution: To achieve the above object, the utility model discloses a kind of proportioning coal control device, comprising: material holding hopper, be equipped with multiple, and multiple the material holding hopper is used to store different kinds or quality coal material;Sleeve, be equipped with multiple, and multiple The sleeve is respectively below multiple the material holding hopper, the sleeve is equipped with feed inlet and discharge port, and the feed inlet of the sleeve is connected with the discharge port of material holding hopper;Spiral feeding rod, be equipped with multiple, and multiple The spiral feeding rod is respectively installed in multiple the sleeve, and the spiral feeding rod is adapted with the sleeve, and the spiral feeding rod is used to send coal material in sleeve to discharge port;Weighing conveyor belt, be equipped with multiple, and multiple The weighing conveyor belt is respectively below the discharge port of multiple the sleeve, and the weighing conveyor belt is used to receive coal material of sleeve discharge port and real-time weight, wherein the material holding hopper material needs to have high strength and wear resistance, to bear the weight and friction of coal material;The material of sleeve should have good sealing property and wear resistance, prevent coal material leakage and sleeve inner wall abrasion;The material of spiral feeding rod should select high strength, not easy to deform material, and its spiral blade surface needs to be smooth, reduce the resistance to coal material;The weighing range of weighing conveyor belt meets the demand of maximum coal blending amount.

[0006] In further embodiment, support frame, below the material holding hopper, the support frame is used to support material holding hopper;Auxiliary support, below the material holding hopper, and the auxiliary support is stably connected with support frame, and the auxiliary support is used to provide the installation position of sleeve and weighing conveyor belt, wherein the support component of support frame needs to be calculated and simulated test, to ensure that can bear full load material holding hopper weight;The connecting part of auxiliary support and support frame is strengthened, to prevent loosening during equipment operation.

[0007] In further embodiment, main conveyor belt, installed on auxiliary support, the main conveyor belt is below weighing conveyor belt, and the main conveyor belt is used to receive coal material falling from weighing conveyor belt and is transported to next production link, wherein the belt body material of main conveyor belt should have high wear resistance and tear resistance, and the speed regulation range of main conveyor belt should meet the conveying requirement under different coal blending amount and production efficiency.

[0008] In further embodiment, speed regulation box, installed between adjacent two sleeves, the speed regulation box is used to adjust the transmission ratio between adjacent two spiral feeding rods.

[0009] In a further embodiment, the speed regulating gears are provided with two, and the two speed regulating gears are rotatably and slidably installed in the speed regulating box, and the speed regulating gears are used to adjust the transmission ratio between two adjacent spiral feeding rods; the chain is meshingly installed on the two speed regulating gears, and the chain is used for power transmission between the two speed regulating gears, wherein the tooth profile accuracy and surface hardness of the speed regulating gears should be within a reasonable range to ensure good wear resistance and transmission efficiency; the tensile strength of the chain should meet the requirements of the maximum power transmission in the speed regulating box, the connection between the chain links should be firm, and the elongation of the chain should be reasonable.

[0010] In a further embodiment, the transmission rods are provided with two, and the two transmission rods are rotatably installed in the speed regulating box, and the two transmission rods correspond to the two speed regulating gears respectively, and the transmission rods are used for power transmission between the spiral feeding rods and the speed regulating gears; the connecting rod is stably connected to the speed regulating gear at one end and slidably connected to the transmission rod at the other end, and the connecting rod is used for power transmission between the transmission rod and the speed regulating gear, wherein the connecting part of the connecting rod and the speed regulating gear should be treated to prevent loosening, and the sliding connection part of the connecting rod and the transmission rod should ensure a good fit clearance.

[0011] In a further embodiment, the bevel gears are provided with multiple, and the multiple bevel gears are stably connected to the spiral feeding rods and the transmission rods respectively, and the bevel gears are meshingly connected between adjacent spiral feeding rods and transmission rods, wherein the tooth surface roughness and meshing gap of the bevel gears are controlled within a suitable range to ensure good transmission performance and low noise operation; the material selection of the bevel gears should consider their strength and wear resistance, which can withstand various loads during the speed regulation process.

[0012] In a further embodiment, the adjusting push rod is installed on the speed regulating box, the telescopic end of the adjusting push rod is rotatably connected to the speed regulating gear, and the adjusting push rod is used to control the movement of the adjusting gear, wherein the telescopic accuracy of the adjusting push rod should be controlled within a suitable range, and the thrust should meet the requirements of moving the speed regulating gear in the speed regulating box; the connecting part of the adjusting push rod and the speed regulating box should be sealed to prevent foreign matter from entering the speed regulating box.

[0013] In a further embodiment, the shape of the connecting rod is square, triangular or elliptical, wherein if the connecting rod is square, the edge length tolerance is controlled within ±0.05mm, if the connecting rod is triangular, the edge length tolerance is controlled within ±0.03mm, if the connecting rod is elliptical, the long axis size tolerance is controlled within ±0.04mm, the short axis size tolerance is controlled within ±0.03mm, and the ellipticity is controlled within ±0.002mm, to ensure good fit with the transmission rod.

[0014] In a further embodiment, the support frame and the auxiliary support frame are each provided with a power source to drive the main conveying belt, the spiral feeding rod and the weighing conveying belt, wherein the power of the power source is reasonably selected according to the load requirements of the main conveying belt, the spiral feeding rod and the weighing conveying belt, and has a certain power margin; the control accuracy of the power source is high, and the accurate speed or torque control can be realized according to the instructions of the control system, and the operation stability meets the requirements of long-time continuous operation.

[0015] Beneficial effects: 1. Through the cooperation of multiple material containing hoppers, sleeves, spiral feeding rods and weighing conveying belts, accurate metering and conveying control of different types and quality coal materials are realized, and the effect of precise coal blending is achieved; multiple material containing hoppers store different coal materials respectively, the sleeves and spiral feeding rods connected below can stably convey the coal materials, and the weighing conveying belt below the discharge port of the sleeve can realize real-time weighing; this series of structures can accurately control the amount of each type of coal, thereby ensuring the accuracy of the coal blending ratio and avoiding subsequent production problems caused by improper coal blending ratio.

[0016] 2. Through the cooperation of the speed regulating box, the speed regulating gear, the chain, the transmission rod, the connecting rod, the bevel gear and the adjusting push rod, flexible adjustment of the speed of the spiral feeding rod is realized, the purpose of flexible control of the coal blending speed is achieved, and no additional power source is needed; the speed regulating gear in the speed regulating box is connected by the chain, interacts with the transmission rod and the connecting rod, the bevel gear connects the spiral feeding rod and the transmission rod, and the adjusting push rod can control the movement of the speed regulating gear, so that the operator can quickly and accurately adjust the coal blending speed according to the actual production requirements. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the sleeve.

[0020] Figure 3 It is a structural schematic diagram of the spiral feeding rod.

[0021] Figure 4 It is a structural schematic diagram of the speed regulating gear.

[0022] The reference signs in the drawing are: 1, support frame; 2, material containing hopper; 3, auxiliary support; 4, main conveying belt; 5, sleeve; 501, spiral feeding rod; 6, weighing conveying belt; 7, speed regulating box; 8, bevel gear; 9, transmission rod; 10, speed regulating gear; 11, connecting rod; 12, chain; 13, adjusting push rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The application provides a proportional coal blending control device, which solves the technical problems of inaccurate coal blending proportion and inflexible coal blending speed adjustment in existing coal blending equipment. In actual use, the purpose of accurate coal blending and flexible coal blending speed adjustment is achieved.

[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0026] Reference Figures 1-4 A proportional coal blending control device comprises: a plurality of material containing hoppers 2, which are used to store different types or qualities of coal materials; a plurality of sleeves 5, which are respectively below the plurality of material containing hoppers 2, the sleeve 5 is provided with an inlet and an outlet, and the inlet of the sleeve 5 is connected with the discharge port of the material containing hopper 2; a plurality of spiral feeding rods 501, which are respectively installed in the plurality of sleeves 5, the spiral feeding rod 501 is matched with the sleeve 5, and the spiral feeding rod 501 is used to send the coal material in the sleeve 5 to the outlet; and a plurality of weighing conveying belts 6, which are respectively below the outlets of the plurality of sleeves 5, and the weighing conveying belt 6 is used to receive the coal material from the outlet of the sleeve 5 and measure the weight in real time.

[0027] Different coal materials are stored in the plurality of material containing hoppers 2, and the sleeves 5, the spiral feeding rods 501 and the weighing conveying belts 6 below are connected, so that the classification storage, orderly conveying and accurate weighing of the plurality of coal materials are realized, thereby providing a basis for accurate coal blending, and the conveying amount and proportion of different types or qualities of coal materials can be effectively controlled.

[0028] Support frame 1, which is directly below the material containing hopper 2, is used to support the material containing hopper 2; auxiliary support 3, which is below the material containing hopper 2, is stably connected with the support frame 1, and the auxiliary support 3 is used to provide the mounting position of the sleeve 5 and the weighing conveying belt 6.

[0029] The support frame 1 realizes stable support of the material containing hopper 2, guarantees the stability of the material containing hopper 2 during loading of coal materials; the auxiliary support 3 is connected with the support frame 1, provides accurate mounting position for the sleeve 5 and the weighing conveying belt 6, ensures the stability of the entire coal blending device structure and the accuracy of the installation of each component, and is conducive to long-term stable operation of the system.

[0030] The main conveying belt 4 is installed on the auxiliary support 3, and the main conveying belt 4 is directly below the weighing conveying belt 6, and the main conveying belt 4 is used to receive the coal materials falling from the weighing conveying belt 6 and convey to the next production link.

[0031] The main conveying belt 4 can receive the coal materials falling from the weighing conveying belt 6 and convey to the next production link, realizes smooth transfer of the blended coal materials from the coal blending device to the subsequent production process, and guarantees the continuity of production.

[0032] The speed regulation box 7 is installed between two adjacent sleeves 5, and the speed regulation box 7 is used to adjust the transmission ratio between two adjacent screw feed rods 501.

[0033] The speed regulation box 7 is installed between two adjacent sleeves 5, realizes adjustment of the transmission ratio between two adjacent screw feed rods 501, so that the rotation speed of the screw feed rod 501 can be flexibly changed according to the coal blending demand, and provides a key function for accurate coal blending and adjustment of the coal blending speed.

[0034] Two speed regulation gears 10 are provided, and the two speed regulation gears 10 are rotatably and slidably installed in the speed regulation box 7, and the speed regulation gears 10 are used to adjust the transmission ratio between two adjacent screw feed rods 501; a chain 12 is meshingly installed on the two speed regulation gears 10, and the chain 12 is used for power transmission between the two speed regulation gears 10.

[0035] The two speed regulation gears 10 are rotatably and slidably installed in the speed regulation box 7, which realizes adjustment of the transmission ratio between two adjacent screw feed rods 501, and the chain 12 is meshingly installed on the two speed regulation gears 10, which guarantees stable transmission of power between the two speed regulation gears 10 during speed regulation, so that the speed regulation operation can effectively change the rotation speed of the screw feed rod 501.

[0036] Transmission rods 9 are provided with two, two said transmission rods 9 are rotatably installed in the speed regulating box 7, and two said transmission rods 9 are respectively corresponding to two said speed regulating gears 10, said transmission rods 9 are used for power transmission between the spiral feeding rod 501 and the speed regulating gear 10; The connecting rod 11 is stably connected with one end of the speed regulating gear 10, and the other end is slidably connected in the transmission rod 9, said connecting rod 11 is used for power transmission between the transmission rod 9 and the speed regulating gear 10.

[0037] Two transmission rods 9 are rotatably installed in the speed regulating box 7, realizing the power transmission between the spiral feeding rod 501 and the speed regulating gear 10; The connecting rod 11 connects the speed regulating gear 10 and the transmission rod 9, which ensures the continuity of power transmission when the speed regulating gear 10 moves, and the cooperation of the two ensures the effective transmission of power between different parts during the speed regulation, so that the speed regulation function can be realized smoothly.

[0038] Bevel gears 8 are provided with multiple, and multiple bevel gears 8 are stably connected with spiral feeding rod 501 and transmission rod 9, and the bevel gears 8 between adjacent spiral feeding rod 501 and transmission rod 9 are meshed.

[0039] Multiple bevel gears 8 are stably connected with spiral feeding rod 501 and transmission rod 9 and meshed with each other, realizing power transmission and speed change in different angles and directions, ensuring the efficiency and stability of power transmission between spiral feeding rod 501 and transmission rod 9, meeting the complex speed regulation and power transmission requirements.

[0040] Adjusting push rod 13 is installed on the speed regulating box 7, the telescopic end of said adjusting push rod 13 is rotatably connected with the speed regulating gear 10, said adjusting push rod 13 is used for controlling the adjusting gear to move.

[0041] The adjusting push rod 13 is installed on the speed regulating box 7, and the telescopic end is rotatably connected with the speed regulating gear 10, realizing accurate control of the position of the speed regulating gear 10, so that the transmission ratio can be accurately adjusted according to the demand, and the speed of the spiral feeding rod 501 can be flexibly controlled.

[0042] The shape of said connecting rod 11 is square or triangular or elliptical.

[0043] The connecting rod 11 is designed as square, triangular or elliptical, which realizes the limitation of its own rotation when slidingly connected with the transmission rod 9, ensures the stability of power transmission, and avoids affecting the accuracy of speed regulation and power transmission due to the random rotation of the connecting rod 11.

[0044] The power source is provided on the support frame 1 and the auxiliary support frame 3 to drive the main transmission belt 4, the spiral feeding rod 501 and the weighing transmission belt 6.

[0045] The power sources on the support frame 1 and the auxiliary support frame 3 drive the main conveying belt 4, the spiral feeding rod 501 and the weighing conveying belt 6 respectively, realize the stable operation of each component, provide power guarantee for the normal work of the whole coal blending control device, and ensure the efficient and orderly performance of the coal blending process.

[0046] In use, firstly, different kinds or qualities of coal are stored in the plurality of material holding hoppers 2, the coal falls into the sleeve 5 below the discharge port of the material holding hopper 2 under the action of gravity, the spiral feeding rod 501 in the sleeve 5 stably feeds the coal to the discharge port, and the coal then falls onto the weighing conveying belt 6 below the discharge port of the sleeve 5 for real-time weighing; in this process, the support frame 1 below the material holding hopper 2 provides stable support for the material holding hopper 2, and the auxiliary support frame 3 stably connected with the support frame 1 and below the material holding hopper 2 provides installation positions for the sleeve 5 and the weighing conveying belt 6; then, the coal on the weighing conveying belt 6 falls onto the main conveying belt 4 installed on the auxiliary support frame 3, and the main conveying belt 4 conveys the coal to the next production link; at the same time, the speed regulating box 7 installed between the adjacent two sleeves 5 starts to work, the two speed regulating gears 10 rotatably and slidably installed in the speed regulating box 7 transmit power through the chain 12, the two transmission rods 9 rotate in the speed regulating box 7 and correspond to the two speed regulating gears 10 respectively, the connecting rod 11 is stably connected with the speed regulating gear 10 at one end and slidably connected with the transmission rod 9 at the other end, so as to realize power transmission between the spiral feeding rod 501 and the speed regulating gear 10, the plurality of bevel gears 8 are stably connected with the spiral feeding rod 501 and the transmission rod 9 respectively and meshed and connected between the adjacent spiral feeding rod 501 and the transmission rod 9, the adjustment push rod 13 installed on the speed regulating box 7 controls the movement of the speed regulating gear 10 through the rotational connection of the telescopic end with the speed regulating gear 10, so as to adjust the transmission ratio between the adjacent two spiral feeding rods 501, and the power sources on the support frame 1 and the auxiliary support frame 3 provide operation power for the spiral feeding rod 501, the weighing conveying belt 6 and the main conveying belt 4, and guarantee the continuous and stable operation of the whole process.

[0047] The protective device for preventing the chain from falling off, the tensioning device for adjusting the tightness of the barrel and the control equipment for setting the blending ratio required in the above description all belong to the prior art and are non-essential technical features in the present application, so they are not described and drawn in the documents and drawings of the present application; and the graphics shown in the drawings are example graphics, and the purpose is only to more intuitively show the key structure and connection relationship of the proportional coal blending control device; in actual application, the appearance and size of the device can be adjusted and optimized according to specific needs.

[0048] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0049] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for the ordinary skilled person in the art, a number of improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A coal blending control device characterized by comprising: include: A plurality of material holding hoppers (2) are provided, and the plurality of material holding hoppers (2) are used to store coal materials of different types or qualities; There are multiple sleeves (5), and the multiple sleeves (5) are respectively located below the multiple material holding funnels (2). The sleeves (5) are provided with a feed port and a discharge port, and the feed port on the sleeve (5) is docked with the discharge port of the material holding funnel (2); There are multiple spiral feeding rods (501), and the multiple spiral feeding rods (501) are respectively installed in the multiple sleeves (5), and the spiral feeding rods (501) are adapted to the sleeves (5), and the spiral feeding rods (501) are used to deliver the coal in the sleeves (5) to the discharge port; There are multiple weighing conveyor belts (6), and the multiple weighing conveyor belts (6) are respectively located directly below the discharge ports on the multiple sleeves (5). The weighing conveyor belts (6) are used to receive the coal material at the discharge ports of the sleeves (5) and measure the weight in real time.

2. A coal blending control device according to claim 1, wherein Also includes: A support frame (1) is located directly below the material holding funnel (2), and the support frame (1) is used to support the material holding funnel (2); The auxiliary bracket (3) is located below the material holding funnel (2), and the auxiliary bracket (3) is stably connected to the support frame (1). The auxiliary bracket (3) is used to provide an installation position for the sleeve (5) and the weighing conveyor belt (6).

3. A coal blending control device according to claim 2, wherein Also includes: The main conveyor belt (4) is installed on the auxiliary bracket (3). The main conveyor belt (4) is located directly below the weighing conveyor belt (6). The main conveyor belt (4) is used to receive the coal material dropped from the weighing conveyor belt (6) and transport it to the next production link.

4. The coal blending control device of claim 1, wherein Also includes: A speed regulating box (7) is installed between two adjacent sleeves (5), and the speed regulating box (7) is used to adjust the transmission ratio between two adjacent spiral feeding rods (501).

5. A coal blending control device according to claim 4, wherein Also includes: There are two speed regulating gears (10), and the two speed regulating gears (10) are rotatably and slidably installed in the speed regulating box (7), and the speed regulating gears (10) are used to adjust the transmission ratio between two adjacent spiral feeding rods (501); A chain (12) is meshedly mounted on two speed regulating gears (10), and the chain (12) is used for power transmission between the two speed regulating gears (10).

6. A coal blending control device according to claim 5, wherein Also includes: There are two transmission rods (9), the two transmission rods (9) are rotatably mounted in the speed regulating box (7), and the two transmission rods (9) correspond to the two speed regulating gears (10) respectively, and the transmission rods (9) are used for power transmission between the spiral feeding rod (501) and the speed regulating gear (10); A connecting rod (11) has one end stably connected to the speed regulating gear (10) and the other end slidably connected to the transmission rod (9). The connecting rod (11) is used for power transmission between the transmission rod (9) and the speed regulating gear (10).

7. A coal blending control device according to claim 6, wherein Also includes: There are multiple bevel gears (8), and the multiple bevel gears (8) are stably connected to the spiral feeding rod (501) and the transmission rod (9) respectively, and the bevel gears (8) between adjacent spiral feeding rods (501) and the transmission rod (9) are meshed and connected.

8. A coal blending control device according to claim 5, wherein Also includes: Adjusting push rod (13) is installed on the speed regulation box (7), the telescopic end of the adjusting push rod (13) is rotatably connected with the speed regulation gear (10), and the adjusting push rod (13) is used for controlling the movement of the adjusting gear.

9. A proportional coal blending control device according to claim 6, wherein: The connecting rod (11) is square, triangular or oval in shape.

10. The proportional coal blending control device of claim 2, wherein: The support frame (1) and the auxiliary support frame (3) are provided with power sources to drive the main conveying belt (4), the spiral feeding rod (501) and the weighing conveying belt (6).

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