Automatic batching and feeding system for improving quality of calcium carbide

Abstract

The invention belongs to the technical field of calcium carbide feeding, and particularly relates to an automatic batching and feeding system for improving the quality of calcium carbide, which comprises a batching assembly, an inclined feeding conveying belt and a horizontal feeding conveying belt, wherein the inclined feeding conveying belt is in an inclined shape with the left higher than the right, the upper left side of the inclined feeding conveying belt is connected with the horizontal feeding conveying belt, the horizontal feeding conveying belt extends to a feeding port in the upper portion of the calcium carbide furnace, the batching assembly comprises a material supplementing mechanism and a material tank, a feeding pneumatic gate valve is installed at the feeding port, and the material tank is connected with the inclined feeding conveying belt. The discharging end of the material supplementing mechanism corresponds to the feeding port, a heavy hammer material level indicator is installed on the upper portion of the material tank, and a hammer head of the heavy hammer material level indicator extends into the material tank. The functions of manual operation and automatic batching control are achieved, the production process is dynamically simulated, and the working state and the target weight and the actual weight of each material can be displayed in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of calcium carbide feeding, and particularly to an automatic batching and feeding system for improving the quality of calcium carbide. Background Art

[0002] Calcium carbide, also known as calcium carbide, is a key chemical raw material and plays a crucial role in many industrial fields, including as a raw material for organic synthesis, a reducing agent in the metallurgical industry, and a desiccant in the construction industry. The production of calcium carbide usually involves mixing limestone and coke in a certain proportion and then feeding them into an electric furnace for high-temperature smelting. The batching and feeding processes are key steps to ensure production efficiency and product quality.

[0003] Existing batching and feeding technical solutions and their disadvantages:

[0004] Manual batching and feeding: This is the most traditional method, where operators perform batching and feeding based on experience. The disadvantages of this method are high labor intensity, low efficiency, difficulty in ensuring the accuracy and consistency of batching, resulting in unstable quality of calcium carbide.

[0005] Semi-automatic batching and feeding system: This system uses mechanical equipment to assist manual batching and feeding. Although it is an improvement compared to the pure manual method, the equipment runs unstably, the maintenance cost is high, and it still requires manual intervention and cannot achieve full automation. The accuracy and consistency of batching still need to be improved. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic batching and feeding system for improving the quality of calcium carbide to solve the problems in the above background art, such as the unstable operation of existing batching equipment, high maintenance cost, still requiring manual intervention, inability to achieve full automation, and the accuracy and consistency of batching still need to be improved.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An automatic batching and feeding system for improving the quality of calcium carbide, comprising:

[0008] A batching component, an inclined feeding conveyor belt, and a horizontal feeding conveyor belt;

[0009] Among them, the inclined feeding conveyor belt is inclined with the left side higher and the right side lower. The upper left side of the inclined feeding conveyor belt is connected to the horizontal feeding conveyor belt, and the horizontal feeding conveyor belt extends to the upper feeding port of the calcium carbide furnace;

[0010] The batching component includes a feeding mechanism and a material tank. The feeding mechanism is arranged on the upper side of the material tank. There are twelve material tanks, among which six are lime material tanks and six are carbon material tanks. The upper part of the material tank is provided with a feeding port, and a feeding pneumatic slide valve is installed at the feeding port. The discharging end of the feeding mechanism corresponds to the feeding port.

[0011] The material tank is installed on a circular moving support, and the circular moving support can drive the material tank to rotate. A discharging pneumatic slide valve is arranged on the lower side of the material tank. A lime weighing and discharging mechanism and a carbon material weighing and discharging mechanism are respectively arranged on the lower sides of the lime material tank and the carbon material tank. Both the lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism are located on the upper side of the right lower part of the inclined feeding conveyor belt.

[0012] A heavy hammer level gauge is installed on the upper part of the material tank, and the hammer head of the heavy hammer level gauge extends into the material tank.

[0013] Preferably, load-bearing brackets are arranged on the lower sides of both the inclined feeding conveyor belt and the horizontal feeding conveyor belt.

[0014] Preferably, the feeding mechanism includes a silo, a screw feeder, a feeding transmission mechanism, and a weighing and feeding mechanism. The screw feeder is longitudinally installed in the silo and extends upward. The feeding transmission mechanism is arranged at the upper outlet of the screw feeder. The weighing and feeding mechanism is installed on the lower left side of the feeding transmission mechanism, and the left side of the weighing and feeding mechanism corresponds to the position of the feeding port of the material tank.

[0015] Preferably, the feeding transmission mechanism includes an inclined conveyor belt, which is inclined with the left side lower and the right side higher. An eccentric wheel vibrator is arranged on the outer wall of the inclined conveyor belt. A spring support mechanism is arranged on the lower surface of the inclined conveyor belt. The lower left side of the inclined conveyor belt is located on the upper right side of the weighing and feeding mechanism.

[0016] Preferably, the weighing and feeding mechanism includes a conveyor belt body and pressure detectors arranged on the lower parts of the left and right sides of the conveyor belt body.

[0017] Preferably, the lime weighing and discharging mechanism includes a vibrating feeder, and the carbon material weighing and discharging mechanism includes a scale conveyor. The lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism also include a weighing mechanism, which is located under the corresponding vibrating feeder and scale conveyor.

[0018] Preferably, the weighing mechanism includes a metering hopper that is hollow and open at the upper part. Pressure sensors for supporting and detecting the metering hopper are arranged on the left and right sides of the metering hopper. An output pneumatic slide valve is arranged at the bottom of the metering hopper.

[0019] Preferably, the six lime material tanks include three Type-A lime material tanks and three Type-A lime material tanks, and the six carbon material tanks include three Type-A carbon material tanks and three Type-A carbon material tanks. Among them, the Type-A lime material tanks and the Type-A carbon material tanks are used in cooperation with each other, and the Type-A lime material tanks and the Type-A carbon material tanks are used in cooperation with each other.

[0020] Preferably, protective fences are provided at the front and rear side edges of the inclined feeding conveyor belt and the horizontal feeding conveyor belt.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] It realizes the functions of manual operation and automatic control of batching, dynamically simulates the production process, can display the working status and the target weight and actual weight of each material in real time, and the formula can be changed at any time. The data of each batch of materials has historical records, and the consumption of materials can be reported and statistically analyzed and queried. Development of the program control for automatic feeding: automatically proportion the ingredients according to the ratio, automatically inspect the material level in the silo, automatically select the target bin, automatically start the feeding equipment, add materials and wait, identify and judge, continue to start the feeding equipment, and perform PID operation; Batching process: Before batching, the formula must be set. Click the formula setting button to pop up the setting window. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the batching component of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the feeding and conveying mechanism of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the material tank, the discharging pneumatic plug valve, the scale conveyor, the vibrating feeder, the weighing hopper, the detection pressure sensor, and the output pneumatic plug valve of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the material tank and the heavy hammer level gauge of the present invention.

[0028] In the figure: 1, calcium carbide furnace; 2, horizontal feeding conveyor belt; 3, inclined feeding conveyor belt; 4, bearing bracket; 5, batching component; 51, scraping bin; 52, screw feeder; 53, feeding and conveying mechanism; 531, inclined conveyor belt; 532, eccentric wheel shaker; 533, spring support mechanism; 54, weighing and feeding mechanism; 55, annular moving bracket; 56, material tank; 57, heavy hammer level gauge; 58, feeding pneumatic plug valve; 59, discharging pneumatic plug valve; 510, scale conveyor; 511, vibrating feeder; 512, weighing hopper; 513, detection pressure sensor; 514, output pneumatic plug valve. Detailed Implementation Modes

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] Embodiment 1:

[0032] Please refer to Figures 1-5 , the present invention provides a technical solution: an automatic batching and feeding system for improving the quality of calcium carbide, including: a batching component 5, an inclined feeding conveyor belt 3, and a horizontal feeding conveyor belt 2;

[0033] Among them, the inclined feeding conveyor belt 3 is in an inclined shape with the left side higher than the right side. The upper left side of the inclined feeding conveyor belt 3 is connected to the horizontal feeding conveyor belt 2. The horizontal feeding conveyor belt 2 extends to the upper feeding port of the calcium carbide furnace 1. The batching component 5 includes a replenishing mechanism and a material tank 56. The replenishing mechanism is arranged on the upper side of the material tank 56. There are twelve material tanks 56, and six of the twelve material tanks 56 are lime material tanks and six are carbon material tanks. The upper part of the material tank 56 is provided with a feeding port, and a feeding pneumatic flap valve 58 is installed at the feeding port. The discharging end of the replenishing mechanism corresponds to the feeding port. The material tank 56 is installed on a circular moving support 55, and the circular moving support 55 can drive the material tank 56 to rotate. A discharging pneumatic flap valve 59 is arranged on the lower side of the material tank 56. A lime weighing and discharging mechanism and a carbon material weighing and discharging mechanism are respectively arranged on the lower sides of the lime material tank and the carbon material tank. The lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism are both located on the upper side of the lower right part of the inclined feeding conveyor belt 3. A heavy hammer level gauge 57 is installed on the upper part of the material tank 56, and the hammer head of the heavy hammer level gauge 57 extends into the material tank 56. The six lime material tanks include three A5 lime material tanks and three A6 lime material tanks. The six carbon material tanks include three A5 carbon material tanks and three A6 carbon material tanks. Among them, the A5 lime material tank and the A5 carbon material tank are used in cooperation, and the A6 lime material tank and the A6 carbon material tank are used in cooperation.

[0034] Analysis of the above content: This solution relies on the existing DCS platform to complete intelligent control and achieve automated operations from batching to the silo.

[0035] Batching control program

[0036] The weighing batching adopts a two - group combination method: One combination (1#): A5 carbon material + B5 lime combination; Another combination (2#): A6 carbon material + B6 lime combination; Between the above two combinations, they cannot be carried out simultaneously during batching.

[0037] When the weighing of the pressure sensor 513 is 0 (the self - weight of structures such as the weighing hopper 512 is removed in advance), the pneumatic inlet slide valve 58 closes, the pneumatic outlet slide valve 59 opens, the scale conveyor 510 and the vibrating feeder 511 start, starting at full speed. When the weight reaches 80%, the speed starts to decrease to 20HZ, with an error ≤ 2.

[0038] During weighing, the lime weighing is the main one, that is, the lime weighing number and the carbon material ratio are set. The carbon material weighing number is the lime real - time weighing number × ratio, with a ratio error ≤ 1%.

[0039] After one combination (1#) of batching is completed, another combination (2#) of batching is automatically started. After detecting that the previous scale has stopped and the weighing is zero, the next - group batching is started.

[0040] When batching, there is one operation button for the two raw materials, that is, when the batching button is pressed, the vibrating feeder 511 and the corresponding pneumatic outlet slide valve 59 are first started, and after a 10 - second delay, the weighing hopper 512 and the corresponding pneumatic outlet slide valve 59 are automatically started.

[0041] Start the level detection program of 12 tank heavy - hammer level gauges to detect the level in the tank 56.

[0042] Level detection program of the heavy - hammer level gauge 57: When receiving the detection instruction, 12 heavy - hammer level gauges 57 detect simultaneously. The detection process takes about 25 seconds. The lowest level of each tank 56 is set to start sending a material - request signal 2.5 meters above the tank cone. Each time, the lowest level plus 1 batch of material is selected. If the detected level is lower than 1.6 meters, 2 batches of material are added at a time, and only the baffle operation needs to be performed during this period.

[0043] Interlock of mixing methods: When mixing and discharging materials with the A5 carbon material + B5 lime combination, the mixing and discharging of the A6 carbon material + B6 lime combination must be blocked and cannot be started simultaneously. Vice versa.

[0044] Interlock of the feeding operation process of the mixture: When starting, it goes from the end point of the material to the starting point of the material in sequence; when stopping, it goes from the starting point of the material to the end point of the material in sequence; if any one of the devices trips, all the devices from this device to the starting point of the material will stop. The stop of the batching feeder does not affect the operation of the process equipment.

[0045] When the material in the storage tank 56 needs to be replenished, the 12 storage tanks 56 are rotated through the annular moving support 55 so that the storage tank 56 that needs to be replenished corresponds to the replenishment mechanism, and the replenishment mechanism replenishes it. According to the above content, at least four replenishment mechanisms are provided to replenish four raw materials.

[0046] Embodiment 2:

[0047] Please refer to Figures 1-5 , based on Embodiment 1, the present invention provides a technical solution: Load-bearing brackets 4 are provided on the lower sides of the inclined feeding conveyor belt 3 and the horizontal feeding conveyor belt 2.

[0048] Analysis of the above content: Through the setting of the load-bearing bracket 4, the inclined feeding conveyor belt 3 and the horizontal feeding conveyor belt 2 can be stably supported.

[0049] Embodiment 3:

[0050] Please refer to Figures 1-5 , based on Embodiment 1, the present invention provides a technical solution: The replenishment mechanism includes a storage bin 51, a screw feeder 52, a feeding transmission mechanism 53, and a weighing and feeding mechanism 54. The screw feeder 52 is longitudinally installed in the storage bin 51 and extends upward. The feeding transmission mechanism 53 is arranged at the upper outlet of the screw feeder 52. The weighing and feeding mechanism 54 is installed at the lower left side of the feeding transmission mechanism 53, and the left side of the weighing and feeding mechanism 54 corresponds to the inlet position of the storage tank 56.

[0051] The feeding transmission mechanism 53 includes an inclined conveyor belt 531. The inclined conveyor belt 531 is inclined with the left side lower and the right side higher. An eccentric wheel shaker 532 is arranged on the outer wall of the inclined conveyor belt 531. A spring support mechanism 533 is arranged on the lower surface of the inclined conveyor belt 531. The lower left side of the inclined conveyor belt 531 is located at the upper right side of the weighing and feeding mechanism 54.

[0052] The weighing and feeding mechanism 54 includes a conveyor belt body and pressure detectors arranged at the lower left and right sides of the conveyor belt body.

[0053] Analysis of the above content: During use, the screw feeder 52 extracts the corresponding material from the storage bin 51 by screw suction, transports it through the feeding transmission mechanism 53 and enters the weighing and feeding mechanism 54, and is weighed by the weighing and feeding mechanism 54, so that the amount of replenishment can be controlled, and the amount of replenishment can be initially controlled from the source position.

[0054] Example 4:

[0055] Please refer to Figures 1-5 , the present invention provides a technical solution based on Example 1: The lime weighing and discharging mechanism includes a vibrating feeder 511, the carbon material weighing and discharging mechanism includes a scale conveyor 510, and the lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism further include a weighing mechanism, and the weighing mechanism is located under the corresponding vibrating feeder 511 and scale conveyor 510. The weighing mechanism includes a metering hopper 512 that is hollow and open at the upper part. Pressure sensors 513 for supporting and detecting the metering hopper 512 are arranged on the left and right sides of the metering hopper 512, and an output pneumatic slide valve 514 is arranged at the bottom of the metering hopper 512.

[0056] Analysis of the above content: The vibrating feeder 511 and the scale conveyor 510 are respectively used to convey carbon materials and lime. After entering the metering hopper 512, the metering hopper 512 and the materials inside it are weighed. After reaching the target weight, the output pneumatic slide valve 514 is opened, so that the materials are output and enter the inclined upward conveying belt 3.

[0057] Example 5:

[0058] Please refer to Figures 1-5 , the present invention provides a technical solution based on Example 1: Protective fences are arranged on the front and rear side edges of the inclined upward conveying belt 3 and the horizontal upward conveying belt 2.

[0059] Analysis of the above content: Through the setting of the protective fence, it plays a role in protecting the conveyed materials.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic batching and feeding system for improving the quality of calcium carbide, characterized in that: include: A batching assembly (5), an inclined feeding conveyor belt (3) and a horizontal feeding conveyor belt (2); The inclined feeding conveyor belt (3) is inclined with the left side higher than the right side, and the upper left side of the inclined feeding conveyor belt (3) is connected with the horizontal feeding conveyor belt (2), and the horizontal feeding conveyor belt (2) extends to the upper feeding port of the calcium carbide furnace (1); The batching component (5) comprises a feeding mechanism and a material tank (56), wherein the feeding mechanism is arranged on the upper side of the material tank (56), wherein twelve material tanks (56) are arranged, and among the twelve material tanks (56), there are six lime material tanks and six carbon material tanks, wherein a feeding port is arranged on the upper part of the material tank (56), and a feeding pneumatic gate valve (58) is installed at the feeding port, and a discharge end of the feeding mechanism corresponds to the feeding port; The material tank (56) is mounted on an annular movable bracket (55), and the annular movable bracket (55) can drive the material tank (56) to rotate. A discharging pneumatic gate valve (59) is arranged at the lower side of the material tank (56). A lime weighing and discharging mechanism and a carbon material weighing and discharging mechanism are arranged at the lower sides of the lime material tank and the carbon material tank, respectively. The lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism are both located at the upper side of the lower right part of the inclined feeding conveyor belt (3); A weight level meter (57) is installed on the upper part of the material tank (56), and the hammer head of the weight level meter (57) extends into the material tank (56).

2. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 1 is characterized in that: A bearing bracket (4) is provided on the lower side of the inclined feeding conveyor belt (3) and the horizontal feeding conveyor belt (2).

3. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 1 is characterized in that: The feeding mechanism comprises a silo (51), a screw feeder (52), a feeding transmission mechanism (53), and a weighing feeding mechanism (54); the screw feeder (52) is longitudinally installed in the silo (51) and extends upward; the feeding transmission mechanism (53) is arranged at the upper outlet of the screw feeder (52); the weighing feeding mechanism (54) is installed on the lower left side of the feeding transmission mechanism (53); and the left side of the weighing feeding mechanism (54) corresponds to the feed port position of the material tank (56).

4. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 3 is characterized in that: The feeding transmission mechanism (53) comprises an inclined transmission belt (531), the inclined transmission belt (531) is inclined with the left side lower and the right side higher, an eccentric wheel vibrator (532) is arranged on the outer wall of the inclined transmission belt (531), a spring support mechanism (533) is arranged on the lower surface of the inclined transmission belt (531), and the lower left side of the inclined transmission belt (531) is located on the upper right side of the weighing feeding mechanism (54).

5. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 3 is characterized in that: The weighing and feeding mechanism (54) comprises a conveyor belt body and pressure detectors arranged at the lower left and right sides of the conveyor belt body.

6. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 1 is characterized in that: The lime weighing and discharging mechanism comprises a vibrating feeder (511), and the carbon material weighing and discharging mechanism comprises a scale plate conveyor (510). The lime weighing and discharging mechanism and the carbon material weighing and discharging mechanism further comprise a weighing mechanism, and the weighing mechanism is located at the lower side of the corresponding vibrating feeder (511) and scale plate conveyor (510).

7. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 6 is characterized by: The weighing mechanism comprises a hollow measuring hopper (512) with an upper opening, and pressure sensors (513) for supporting and detecting the measuring hopper (512) are arranged on the left and right sides of the measuring hopper (512), and an output pneumatic gate valve (514) is arranged at the bottom of the measuring hopper (512).

8. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 1 is characterized in that: The six lime material tanks include three A5 lime material tanks and three A6 lime material tanks, and the six carbon material tanks include three A5 carbon material tanks and three A6 carbon material tanks, wherein the A5 lime material tanks and the A5 carbon material tanks are used in combination, and the A6 lime material tanks and the A6 carbon material tanks are used in combination.

9. The automatic batching and feeding system for improving the quality of calcium carbide according to claim 1 is characterized in that: The front and rear side edges of the inclined feeding conveyor belt (3) and the horizontal feeding conveyor belt (2) are both provided with protective fences.

Images