Automatic treatment system for producing calcium carbide production waste dust as cement clinker

Abstract

The invention relates to an automatic treatment system for producing calcium carbide production waste dust as cement clinker in the technical field of cement processing, which comprises a support frame connected with a stabilizer bar and a support plate; the material box I comprises a box body I and a wing plate fixed on the box body I; the weighing boxes are installed on the supporting plate, and lug plates are fixed to the weighing boxes; the second material box comprises a second box body and a material conveying pipe, the second box body is fixedly installed at the top of the supporting frame, and the bottom of the second box body is arranged in a necking shape; the material conveying pipe is transversely fixed to the supporting frame and communicates with the bottom of the second box body, a motor is arranged at one end of the material conveying pipe, a spiral auger is coaxially and fixedly connected to an output shaft of the motor, and the spiral auger is located in the material conveying pipe; the weighing mechanism comprises a controller, a first weighing sensor and a second weighing sensor, and the weighing sensors are arranged between the stabilizer bar and the wing plate; the second weighing sensor is arranged between the supporting plate and the lug plate. According to the scheme, the problem that when the calcium carbide waste dust is used for cement clinker production, automatic metering and proportioning of the calcium carbide waste dust are lacked is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement processing, in particular to an automatic handling system for using calcium carbide production waste dust as cement clinker production. BACKGROUND

[0002] Calcium carbide (calcium carbide) is an important basic chemical raw material, widely used in acetylene preparation, polyvinyl chloride production and other industrial fields. In the production process of calcium carbide, a large amount of waste dust will be produced, and the main components of the waste dust include calcium oxide, calcium carbide, silicon dioxide, aluminum oxide, iron oxide, etc., and also contains a small amount of harmful impurities such as sulfide and phosphide. At present, the disposal method of calcium carbide production waste dust is mainly stacking and landfill, which not only occupies a large amount of land resources, but also may cause air pollution, soil pollution and water pollution due to the problems of waste dust drifting with the wind and leachate leakage, etc., which poses a serious threat to the ecological environment.

[0003] On the other hand, cement clinker production needs to consume a large amount of calcium raw materials, silicon raw materials, aluminum raw materials and iron raw materials, and the calcium oxide and silicon dioxide contained in the calcium carbide production waste dust are highly consistent with the required raw material components of cement clinker production, which has the potential for resource utilization as cement clinker production raw materials. However, in the prior art, there are many problems in applying calcium carbide production waste dust to cement clinker production: including the lack of efficient automatic control means in the aspects of waste dust transportation and metering, which may cause problems such as transportation blockage and inaccurate metering, affecting the stability of cement production and the quality of clinker. Because calcium carbide waste dust can replace part of the cement clinker raw materials (such as limestone, clay), but still needs to be accurately calculated according to the mineral composition of the cement clinker to calculate the proportion of each raw material, so as to ensure that the rate value (KH, SM, IM) of the clinker is within a reasonable range. Usually, the mixing ratio of calcium carbide waste dust needs to be controlled at 5%-15%, so as to avoid affecting the strength of the clinker due to excessive impurities. Therefore, there is an urgent need for an automatic weighing and proportioning system for using calcium carbide production waste dust for cement processing. SUMMARY

[0004] The present application aims to provide an automatic handling system for using calcium carbide production waste dust as cement clinker production, to solve the problem of lacking automatic metering and proportioning of calcium carbide waste dust when using calcium carbide waste dust for cement clinker production.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: an automatic handling system for using calcium carbide production waste dust as cement clinker production, comprising: a support frame for providing a support base; two stabilizing rods and a transversely arranged support plate are fixedly connected to the support frame in sequence from bottom to top, and the two stabilizing rods are transversely and parallelly fixed on the same horizontal plane of the support frame; The material box one includes a box one with an open top and wing plates fixed on the opposite outer walls of the box one, and the two wing plates are respectively located above the two stabilizing rods; The weighing box is provided with an avoiding opening on the support plate, and the weighing box is located in the avoiding opening. The material box two includes a box two and a material conveying pipe, the box two is fixedly installed on the top of the support frame, and the bottom of the box two is provided in a tapered shape. The weighing mechanism includes a controller, a plurality of weighing sensors one and a plurality of weighing sensors two, the plurality of weighing sensors one and the plurality of weighing sensors two are electrically connected with the controller, the motor is electrically connected with the controller, the plurality of weighing sensors are uniformly and interval arranged between the stabilizing rods and the wing plates, and the plurality of weighing sensors one are used for weighing the materials in the material box one.

[0006] Preferably, as an improvement, the switch assembly includes a cylinder and a sealing plate, the cylinder is electrically connected with the controller, the sealing plate is in sliding contact with the bottom end of the material discharging pipe, and the sealing plate is fixedly connected with the output shaft of the cylinder.

[0007] Preferably, as an improvement, the bottom of the box one is provided in a funnel shape, and the box one is connected with a vertical material guiding pipe, and the material guiding pipe is provided with a switch valve.

[0008] Preferably, as an improvement, when the weighing mechanism is used, the plurality of weighing sensors one weigh the material box one with materials, then the plurality of weighing sensors one transmit the weight signals to the controller, the controller adds the plurality of weight signals to obtain the total weight of the materials, and then multiplies the total weight of the materials by 5-15% to obtain the required quality of the calcium carbide waste dust.

[0009] Preferably, as an improvement, the support frame comprises four vertical beams arranged in a rectangular array, and the vertical beams are fixed by cross beams.

[0010] Preferably, as an improvement, the top of the outer wall of the box one is fixedly connected with four limiting rings, the limiting rings are slidingly sleeved on the vertical beams, and the limiting rings correspond to the vertical beams one by one.

[0011] The principle and advantages of the scheme are: in actual application, the box one is pre-filled with the basic raw materials for cement clinker production, the box two is pre-filled with calcium carbide waste dust, the weighing sensor one at the bottom of the box one collects the weight data of the basic raw materials in real time and transmits them to the controller, the controller automatically calculates the accurate mass of the required calcium carbide waste dust according to the preset 5%~15% calcium carbide waste dust mixing ratio; then the controller sends a start instruction to the motor, the motor drives the spiral auger in the feeding pipe to rotate, the calcium carbide waste dust in the box two is uniformly fed into the weighing box below, at the same time, the weighing sensor two at the bottom of the weighing box collects the weight data of the calcium carbide waste dust in the box in real time and feeds them back to the controller; when the weight collected by the weighing sensor two reaches the target value calculated by the controller, the controller immediately sends a stop instruction, the motor stops running, and the spiral auger stops feeding, so as to realize the accurate metering of the calcium carbide waste dust; after the metering is completed, the controller sends an action instruction to the cylinder on the discharge pipe, the cylinder drives the sealing plate to move through the output shaft to open the discharge pipe, the calcium carbide waste dust in the weighing box falls into the box one and mixes with the basic raw materials, at the same time, the guide pipe on-off valve at the bottom of the box one opens as needed to discharge the mixed raw materials, which are used for subsequent cement clinker production, the whole process is automatically linked and controlled by the controller to complete the metering, proportioning and conveying of the calcium carbide waste dust, and the active treatment of the calcium carbide waste dust as the cement clinker production.

[0012] 1、The total weight of the basic raw materials can be accurately obtained through the cooperation of the weighing sensor one and the box one, the controller automatically calculates the required amount of calcium carbide waste dust according to the preset 5%~15% mixing ratio, and then the weighing sensor two and the weighing box form an automatic control proportioning of raw material weight calculation, waste dust metering and standard shutdown through real-time weighing feedback, which can effectively ensure that the KH, SM and IM rate values of the cement clinker are stable in a reasonable range and improve the qualified rate of clinker strength.

[0013] 2、The bottom of the box two in the scheme adopts a neck-in design, which cooperates with the conveying structure of the feeding pipe and the spiral auger, compared with the traditional gravity feeding mode, the rotation and pushing of the spiral auger can generate a forced conveying force on the calcium carbide waste dust, effectively solving the problem of pipeline blockage caused by the fine particle size and easy caking of the calcium carbide waste dust.

[0014] 3、The scheme integrates the signals and action instructions of the weighing sensor, motor, cylinder and other components through the controller, without manual intervention in calculation, feeding, starting and stopping and other operations, and the whole process is automated. Compared with the traditional manual proportioning mode, a large number of manual operation links can be reduced, not only the labor cost is reduced, but also the health risk of the operator and the environmental pollution caused by the waste dust scattering in the manual feeding process are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The application is a structure diagram of an automatic handling system for calcium carbide production waste dust as cement clinker production.

[0016] Figure 2 For Figure 1 The enlarged view of A.

[0017] The reference signs in the drawings of the specification include: box two 1, vertical beam 2, feeding pipe 3, motor 4, spiral dragon 5, support plate 6, limiting ring 7, box one 8, wing plate 9, weighing sensor one 10, stabilizing rod 11, on-off valve 12, material guide pipe 13, weighing box 14, weighing sensor two 15, ear plate 16, cylinder 17, sealing plate 18. DETAILED DESCRIPTION

[0018] The following will be further described in detail through specific embodiments: The embodiments are basically as shown in the accompanying Figure 1 and accompanying Figure 2 : The application is an automatic handling system for calcium carbide production waste dust as cement clinker production, which comprises: A support frame comprises four vertical beams 2 arranged in a rectangular array, and the vertical beams 2 are fixed by cross beams. The top of the outer wall of the box one 8 is fixedly connected with four limiting rings 7, the limiting rings 7 are slidingly sleeved on the vertical beams 2, and the limiting rings 7 correspond to the vertical beams 2 one by one.

[0019] The support frame is sequentially fixedly connected with two stabilizing rods 11 and a support plate 6 arranged transversely from bottom to top, the two stabilizing rods 11 are fixed transversely and parallelly on the opposite two vertical beams 2, and the two cross bars are located on the same horizontal plane.

[0020] A material box one comprises a box one 8 with an open top and wing plates 9 fixed on the opposite two outer walls of the box, and the two wing plates 9 are located directly above the two stabilizing rods 11 respectively; the bottom of the box one 8 is funnel-shaped, the bottom of the box one 8 is communicated with a vertical material guide pipe 13, and the material guide pipe 13 is provided with an on-off valve 12.

[0021] The weighing box 14 is provided with an open top and is installed directly above the material box one, the support plate 6 is provided with a clearance, the weighing box 14 is located in the clearance, the outer walls of the opposite sides of the weighing box 14 are both fixedly connected with the horizontally arranged ear plates 16, and the ear plates 16 are located above the support plate 6; the bottom of the weighing box 14 is provided in a tapered shape, and the bottom of the weighing box 14 is communicated with the vertical discharge pipe, and the discharge pipe is provided with a switch assembly for closing and opening the discharge pipe.

[0022] The switch assembly comprises a cylinder 17 and a sealing plate 18, the cylinder 17 is electrically connected with the controller, the sealing plate 18 is in sliding contact with the bottom end of the discharge pipe, and the sealing plate 18 is fixedly connected with the output shaft of the cylinder 17, and the cylinder 17 drives the sealing plate 18 to move to close or open the discharge pipe through the elongation or shortening of the output shaft.

[0023] The material box two comprises a box body two 1 and a material conveying pipe 3, the box body two 1 is fixedly installed on the top of the support frame, and the bottom of the box body two 1 is provided in a tapered shape; the material conveying pipe 3 is fixedly arranged on the support frame in a horizontal manner, and the material conveying pipe 3 is located below the box body two 1 and is communicated with the tapered bottom of the box body two 1, one end of the material conveying pipe 3 is provided with the motor 4, the motor 4 is fixedly connected with the support frame, the output shaft of the motor 4 is coaxially fixedly connected with the spiral propeller 5, the spiral propeller 5 is located in the material conveying pipe 3, and the edge of the spiral propeller 5 is in sliding contact with the inner wall of the material conveying pipe 3; the other end of the material conveying pipe 3 is located directly above the open top of the weighing box 14.

[0024] The weighing mechanism comprises a controller, a plurality of weighing sensors one 10 and a plurality of weighing sensors two 15, the plurality of weighing sensors one 10 and the plurality of weighing sensors two 15 are electrically connected with the controller, the motor 4 is electrically connected with the controller, the plurality of weighing sensors are uniformly and intermittently arranged between the stabilizing rod 11 and the wing plate 9, and the plurality of weighing sensors one 10 are used for weighing the material in the material box one; the plurality of weighing sensors two 15 are uniformly and intermittently arranged between the support plate 6 and the ear plate 16, and the plurality of weighing sensors two 15 are used for weighing the material in the weighing box 14.

[0025] The specific implementation process is as follows: In actual application, the box one 8 is pre-filled with the base raw material for cement clinker production, and the box two 1 is pre-filled with the calcium carbide waste dust. The weighing sensor one 10 at the bottom of the box one collects the weight data of the base raw material in real time and transmits to the controller. According to the preset calcium carbide waste dust mixing ratio of 5% to 15%, the controller automatically calculates the accurate mass of the required calcium carbide waste dust. Then the controller sends a start command to the motor 4, and the motor 4 drives the spiral auger 5 in the feeding pipe 3 to rotate, so as to uniformly feed the calcium carbide waste dust in the box two to the weighing box 14 below. At the same time, the weighing sensor two 15 at the bottom of the weighing box 14 collects the weight data of the calcium carbide waste dust in the box in real time and feeds back to the controller. When the weight collected by the weighing sensor two 15 reaches the target value calculated by the controller, the controller immediately sends a stop command, and the motor 4 stops running and the spiral auger 5 stops feeding, so as to realize the accurate metering of the calcium carbide waste dust. After the metering is completed, the controller sends a movement command to the cylinder 17 on the discharge pipe, and the cylinder 17 drives the sealing plate 18 to move through the output shaft to open the discharge pipe. The calcium carbide waste dust in the weighing box 14 falls into the box one and is mixed with the base raw material. At the same time, the on-off valve 12 at the bottom of the box one is opened as needed to discharge the mixed raw material for subsequent cement clinker production. The whole process is automatically linked and controlled by the controller to complete the metering, proportioning and conveying of the calcium carbide waste dust, and the calcium carbide production waste dust is used as the active treatment of the cement clinker production.

[0026] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, some modifications and improvements can be made, which should also be considered as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments in the description can be used to explain the content of the claims.

Claims

1. An automated treatment system for calcium carbide production waste dust as cement clinker production, characterized in that, include: A support frame, used to provide a supporting foundation; The support frame is fixedly connected from bottom to top with two stabilizing rods and a horizontally arranged support plate. The two stabilizing rods are fixed horizontally and parallel to each other on the same horizontal plane of the support frame. The material box 1 includes a box body 1 with an open top and two wing plates fixed to the opposite outer walls of the box body 1. The two wing plates are located directly above the two stabilizing bars. The weighing box has an open top and is installed directly above the material bin. The support plate has a clearance opening, and the weighing box is located in the clearance opening. Horizontally arranged ear plates are fixedly connected to the outer walls of opposite sides of the weighing box, and the ear plates are located above the support plate. The bottom of the weighing box is narrowed, and a vertical discharge pipe is connected to the bottom of the weighing box. A switch assembly for closing and opening the discharge pipe is provided on the discharge pipe. Material bin two includes a bin body two and a conveying pipe. The bin body two is fixedly installed on the top of the support frame, and the bottom of the bin body two is designed with a narrow opening. The conveying pipe is horizontally fixed on the support frame, and the conveying pipe is located below the bin body two and communicates with the narrow opening bottom of the bin body two. One end of the conveying pipe is equipped with a motor, which is fixedly connected to the support frame. A spiral auger is coaxially fixedly connected to the output shaft of the motor. The spiral auger is located inside the conveying pipe, and the edge of the spiral auger slides in contact with the inner wall of the conveying pipe. The other end of the conveying pipe is located directly above the opening of the weighing bin. The weighing mechanism includes a controller, multiple weighing sensors (first and second), and multiple weighing sensors (second and third). Both weighing sensors (first and second) are electrically connected to the controller. The motor is also electrically connected to the controller. The weighing sensors are evenly spaced between the stabilizer bar and the wing plate. The first weighing sensors are used to weigh the material in the hopper. The second weighing sensors are evenly spaced between the support plate and the ear plate, and are used to weigh the material in the weighing box.

2. The automated treatment system for treating calcium carbide production waste dust as cement clinker production according to claim 1, characterized in that: The switching assembly includes a cylinder and a sealing plate. The cylinder is electrically connected to the controller. The sealing plate slides in contact with the bottom end of the discharge pipe and is fixedly connected to the output shaft of the cylinder. When the cylinder is running, the extension or shortening of the output shaft drives the sealing plate to move to close or open the discharge pipe.

3. The automated treatment system for treating calcium carbide production waste dust as cement clinker production according to claim 2, characterized in that: The bottom of the first box is funnel-shaped, and a vertical guide pipe is connected to the bottom of the first box. A switch valve is provided on the guide pipe.

4. The automated treatment system for calcium carbide production waste dust as cement clinker production according to claim 3, characterized in that: When the weighing mechanism is in use, multiple weighing sensors weigh the box containing the material. Then, the multiple weighing sensors transmit the weight signals to the controller. The controller adds the received weight signals to obtain the total weight of the material. The total weight of the material is then multiplied by 5 to 15% to obtain the required mass of calcium carbide dust.

5. The automated treatment system for calcium carbide production waste dust as cement clinker production according to claim 4, characterized in that: The support frame includes four vertical beams arranged in a rectangular array, which are fixed together by horizontal beams.

6. The automated treatment system for treating calcium carbide production waste dust as cement clinker production according to claim 5, characterized in that: Four limiting rings are fixedly connected to the top of the outer wall of the box body. The limiting rings are slidably sleeved on the vertical beams, and the limiting rings correspond one-to-one with the vertical beams.

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