Full-automatic process calcium carbide gas generation amount accurate measuring device

Abstract

The invention belongs to the technical field of calcium carbide gas generation amount measurement, particularly relates to a full-automatic process calcium carbide gas generation amount accurate measurement device, and aims at solving the problems that an existing device cannot achieve automatic operation of the whole process of calcium carbide gas generation amount measurement and cannot achieve more accurate measurement of the gas generation amount of calcium carbide. Comprising a calcium carbide material conveying assembly, a calcium carbide quantitative reaction assembly and a gas generation amount measuring assembly. The measurement device can be automatically controlled at different stages in the measurement process, and full-automatic process measurement is realized; by means of automatic data measurement, errors of reading results caused by subjective factors in manual measurement reading can be avoided, errors of gas generation amount calculation results are avoided, and it can be ensured that the measuring device can accurately measure the gas generation amount of calcium carbide.

Description

Technical Field

[0001] The present invention relates to a device for measuring the gas generation amount of calcium carbide, in particular to a fully automatic process-based accurate device for measuring the gas generation amount of calcium carbide, belonging to the technical field of measuring the gas generation amount of calcium carbide. Background Art

[0002] With the progress of the times, the demand for calcium carbide in industry is growing. The chemical name of calcium carbide is calcium carbide. It can produce acetylene gas when it reacts with water, which is an important basic raw material for organic synthesis. Acetylene gas can be used to produce polyvinyl chloride, chloroprene rubber, calcium cyanamide, acetic acid, vinyl acetate ethanol and its derivatives, cyanide compounds, dicyanamide and acetone. Calcium carbide reacts with nitrogen to produce lime nitrogen, which can be used as agricultural fertilizer. As a basic raw material for production in many industries, calcium carbide needs to be produced in large quantities, and the detection of gas emission is very important.

[0003] my country has become the largest producer of calcium carbide, and the development of the chemical industry is inseparable from the calcium carbide industry. The intensive development of the calcium carbide industry is an inevitable trend. my country's northern and southwestern regions are rich in limestone and coal resources, and hydropower resources are relatively concentrated. Therefore, the calcium carbide industry is gradually accumulating in the northern region, and there will inevitably be multiple calcium carbide companies with a production capacity of millions of tons.

[0004] Calcium carbide, also known as calcium carbide, has a relatively active chemical property. It can react with gases and liquids at appropriate temperatures. It reacts with water to produce gaseous acetylene. The acetylene produced by the reaction with water can be used to synthesize many substances such as synthetic rubber, carbon black, etc. When powdered calcium carbide is heated with nitrogen, it reacts to produce calcium cyanamide, that is, lime nitrogen. The cyanide melt produced by heating lime nitrogen and salt is used in gold mining and non-ferrous metal industries. Calcium carbide itself can be used as a desulfurizer in the steel industry. The method of producing polyvinyl chloride is to use calcium carbide to react with water to produce acetylene, synthesize acetylene with hydrogen chloride to produce vinyl chloride monomer, and then synthesize polyvinyl chloride from vinyl chloride through polymerization. When acetylene was first converted into acetaldehyde in 1916, people had their initial interest in it. The increase in the industrial use of acetylene led to the demand for calcium carbide. Today, the production of calcium carbide needs to be expanded to achieve a balance between production and demand. The more calcium carbide is produced, the more frequent the demand for gas emission detection becomes.

[0005] There are two basic production methods: aerobic heating and electric heating. Generally, electric heating is used to produce calcium carbide, that is, quicklime and carbon-containing raw materials are melted in a calcium carbide furnace by an electric arc at high temperature to generate calcium carbide.

[0006] Calcium carbide reacts with water to produce acetylene gas, which is an important basic raw material for organic synthesis. The following are calcium carbide: CaC2 + 2H2O = C2H2↑+ Ca(OH)2 The detection of gas emission in mass production of calcium carbide requires a lot of manpower. And the subjectivity of human operation leads to inaccurate measurement results. Therefore, the automation transformation of the measuring device can save manpower while ensuring the accuracy of the measurement results. It is of great significance to improve the inspection efficiency of the quality of calcium carbide produced by enterprises.

[0007] At present, the domestic method for measuring the gas emission of calcium carbide mainly adopts the national standard GB10665-2004 "Calcium Carbide (Calcium Carbide)". The existing gas emission measurement method is prone to measurement errors due to instrument use and calculation, and the reproducibility of the gas emission analysis data of calcium carbide is poor. In the daily work of measuring the gas emission of calcium carbide, the laboratory technician uses the equipment manually in accordance with the content of GB10665-2004. In the process of measurement, the laboratory technician is required to quickly complete operations such as opening and closing the cover, switching valves, and taking and placing weights. There are many work links, long distances, and low work efficiency. When reading the scale value and calculating the measurement results, the laboratory technician is prone to human subjective factors, and the accuracy of the final result cannot be guaranteed, and it is difficult to effectively prevent individual errors.

[0008] In the prior art, there is an automatic measuring device for the gas generation of calcium carbide disclosed in announcement number CN111579425A, which includes an equipment box and an equipment base assembly, the equipment box is installed above the equipment base assembly, and the equipment base assembly is provided with an automatic sample loading chamber, a gas generator, a gas-liquid separator, a gas measurement bell assembly, a water supply pipeline assembly, an exhaust pipeline assembly, a slag discharge drawer assembly, an overflow water pressure device and a drainage trough, a sample loading hole is provided on the equipment box, the gas-liquid separator is connected to the gas measurement bell assembly through the exhaust pipeline assembly, the gas generator is connected to the slag discharge drawer assembly, a slag discharge pneumatic ball valve is provided between the gas generator and the slag discharge drawer assembly, the drainage trough is provided below the slag discharge drawer assembly, and the overflow water pressure device is provided above the slag discharge drawer assembly, which solves the problems that the existing calcium carbide gas generation test is greatly affected by human factors, the test efficiency is low, and the automation process is The problem of low accuracy is that although the existing device is equipped with an automatic sample adding chamber, what is added is the treated calcium carbide raw material, and the feeding part of the calcium carbide raw material cannot be automated, so that the efficiency of the calcium carbide gas emission measurement work cannot be well improved, and errors are prone to occur during the feeding process, and the accuracy of the feeding cannot be guaranteed, that is, the entire process of the calcium carbide gas emission measurement cannot be automated. Secondly, although the existing device can use a PLC system or a single-chip microcomputer to record test data, the recorded data is only height measurement data, and for specific feed volume, pressure value, temperature value and other data, it is still necessary to measure and record manually. Due to the subjective factors in the manual measurement readings, errors occur in the reading results, which causes errors in the calculated gas emission results, and thus makes it impossible to achieve a more accurate measurement of the gas emission of calcium carbide. Summary of the invention

[0009] The present invention provides a fully automatic process-based calcium carbide gas generation precision measurement device to solve the problem that the existing device cannot realize the automated operation of the entire process of calcium carbide gas generation measurement and cannot realize more precise measurement of the calcium carbide gas generation.

[0010] The present invention achieves the above-mentioned purpose through the following technical scheme: a fully automatic process-based accurate measurement device for the gas generation amount of calcium carbide, comprising a calcium carbide material conveying component, a calcium carbide quantitative reaction component and a gas generation amount measurement component, wherein the calcium carbide material conveying component is arranged on one side of the calcium carbide quantitative reaction component, and the gas generation amount measurement component is arranged on the other side of the calcium carbide quantitative reaction component; The calcium carbide material conveying assembly includes a water storage tank and a calcium carbide feeding conveying assembly. The water storage tank is arranged on one side of the calcium carbide feeding conveying assembly. The calcium carbide feeding conveying assembly includes a jaw crusher and a conveyor belt assembly. The bottom end of the water storage tank is connected with a water pipe, and the other end of the water pipe is connected with the calcium carbide quantitative reaction assembly. The conveying front end of the conveyor belt assembly is located below the discharge port of the jaw crusher, and the conveying end of the conveyor belt assembly is located at the upper end of the calcium carbide quantitative reaction assembly. The conveyor belt assembly is provided with an automatic screening unit and an automatic feeding unit. The calcium carbide quantitative reaction component includes a gas generator and a water-gas separator. The side of the gas generator is connected to the other end of the water pipe. The upper end of the gas generator is connected to a feed unit, and the feed unit is located directly below the automatic feeding unit. A water-gas mixing delivery pipe is connected between the gas generator and the water-gas separator. The output end of the water-gas separator is connected to a gas pipeline unit. Electric ball valve units are respectively installed on the pipe bodies of each pipeline of the gas pipeline unit. The gas emission measurement component includes an outer barrel, a bell jar, a laser displacement sensor, a digital remote pressure gauge, an electric push rod and a temperature transmitter. The bottom end of the outer barrel is connected to the delivery end of the gas pipeline unit. The outer barrel is filled with sealing liquid. The bell jar movable card is placed in the outer barrel. The digital remote pressure gauge and the temperature transmitter are both installed at the upper end of the bell jar, and the probe ends of the digital remote pressure gauge and the temperature transmitter are both located in the bell jar. The laser displacement sensor and the electric push rod are fixedly connected above the bell jar in a suspended state. The laser displacement sensor, the digital remote pressure gauge, the electric push rod and the temperature transmitter are all connected to the peripheral terminal for signal transmission.

[0011] As a further solution of the present invention: a table board is arranged below the calcium carbide material conveying assembly, and table legs are vertically connected to the four corners of the table board. The water storage tank of the calcium carbide material conveying assembly and the calcium carbide feed conveying assembly are both fixedly connected to the upper surface of the table board. The water pipe connected to the water storage tank is located below the table board, and the pipe body of the water pipe passes through the table board.

[0012] As a further solution of the present invention: the top of the water tank is connected to a cable hanger, a immersion liquid level sensor is inserted in the water tank, the pipeline of the immersion liquid level sensor is fixedly connected to the cable hanger, and a water delivery electric ball valve is installed on the body of the water delivery pipe.

[0013] As a further solution of the present invention: the conveyor belt assembly of the calcium carbide feeding and conveying assembly includes an inclined feeding conveyor belt, a horizontal feeding conveyor belt and a reversible feeding conveyor belt, the inclined bottom end of the inclined feeding conveyor belt is located below the discharge port of the jaw crusher, the inclined upper end of the inclined feeding conveyor belt is located above the horizontal feeding conveyor belt, and an automatic screening unit is arranged between the inclined upper end of the inclined feeding conveyor belt and the horizontal feeding conveyor belt, the horizontal feeding conveyor belt is located above the reversible feeding conveyor belt, and a feeding funnel is arranged between the conveying end of the horizontal feeding conveyor belt and the belt body of the reversible feeding conveyor belt, the automatic feeding unit is located directly below one end of the reversible feeding conveyor belt, and a sample retention box is arranged directly below the other end of the reversible feeding conveyor belt; The inclined feeding conveyor belt, the horizontal feeding conveyor belt and the reversible feeding conveyor belt are vertically connected with conveyor belt support rods on both sides, and the bottom ends of the conveyor belt support rods are fixedly connected to the table board, and the table board is also fixedly connected to the support platform. The bottom end of the automatic screening unit is movably engaged with the support platform, and the two sides of the feeding funnel are respectively fixedly connected to the rod body of the conveyor belt support rod connected to the conveying end of the horizontal feeding conveyor belt; The rotating roller at one end of the inclined feeding conveyor belt is coaxially connected to the inclined feeding motor, the rotating roller at one end of the horizontal feeding conveyor belt is coaxially connected to the horizontal feeding motor, and the rotating roller at one end of the reversible feeding conveyor belt is coaxially connected to the reversible feeding motor; The outer side surface of the belt body of the inclined feeding conveyor belt is arranged as an inner concave surface, and the outer side surface of the belt body of the inclined feeding conveyor belt is also fixedly connected with a plurality of equally spaced baffle plates.

[0014] As a further scheme of the present invention: the automatic screening unit includes a screening box, a material guide hopper and a vibration motor, a small particle collecting chamber and a large particle collecting chamber are arranged in the screening box through a partition, a large aperture screen and a small aperture screen are connected to the small particle collecting chamber, the large aperture screen and the small aperture screen are inclined in opposite directions, and the large aperture screen is located above the small aperture screen, the mesh body of the large aperture screen is located directly below the conveying end of the inclined feeding conveyor belt, the inclined end of the large aperture screen is connected to the cavity mouth of the large particle collecting chamber, a material guide slot is opened on the cavity wall on one side of the small particle collecting chamber of the screening box, the inclined end of the small aperture screen is fixedly connected to the opening position of the material guide slot, the material guide hopper is connected to the outside of the material guide slot, and the vibration motor is fixedly connected to the outer wall of the screening box.

[0015] As a further solution of the present invention: the automatic feeding unit includes a feeding flap assembly and an electronic balance, the bottom end of the electronic balance is fixedly connected to the table board, the feeding flap assembly includes side support rods, a flip motor, a supporting bottom plate and a flip bottom plate, the side support rods are fixedly connected to the short sides of the supporting bottom plate, the flip bottom plate is movably arranged above the supporting bottom plate, the supporting bottom plate is fixedly connected to the upper end of the electronic balance, one long side of the flip bottom plate is fixedly connected to a flip shaft, one end of the two side support rods is fixedly connected to the flip motor, and the flip motor is fixedly connected to the two ends of the flip shaft coaxially; The upper plate surface of the flip bottom plate is fixedly connected to the collection bottom plate, the edge of the collection bottom plate is connected to a material blocking frame, and one side of the material blocking frame is provided with a discharge notch, and the opening position of the discharge notch is close to the long side of the flip bottom plate connected to the flip shaft.

[0016] As a further scheme of the present invention: the calcium carbide quantitative reaction assembly also includes a supporting box body, the bottom ends of the gas generator and the water-gas separator are fixedly connected in the supporting box body, the box wall of the supporting box body is movably connected with a box cover, the box of the supporting box body is movably engaged with a slag collection box, the slag collection box is horizontally connected with a slag screen, the bottom discharge pipe of the gas generator is connected to a slag discharge solenoid valve, and the bottom discharge pipe of the water-gas separator is connected to a drain solenoid valve, so that the installation positions of the gas generator and the water-gas separator can be fixed by the supporting box body, and the slag discharge solenoid valve and the drain solenoid valve can be opened and closed.

[0017] As a further solution of the present invention: the feeding unit includes a powder buffer tube, a feeding hopper, a cover plate, a connecting block, a connecting seat, an opening and closing motor, and a torque sensor; the tube body of the powder buffer tube is fixedly connected to the upper opening of the gas generator; the feeding hopper is connected to the upper end of the powder buffer tube; the cover plate is movably connected to the bottom end of the powder buffer tube; a connecting block is fixedly connected to the edge of the cover plate; a connecting seat is fixedly connected to one side of the tube wall of the bottom end of the powder buffer tube; the connecting block is rotatably connected to the connecting seat through a rotating shaft; the two sides of the connecting seat are respectively connected to the opening and closing motor and the torque sensor; and the opening and closing motor and the torque sensor are respectively fixedly connected to the coaxial lines at both ends of the rotating shaft docked between the connecting block and the connecting seat; The gas pipeline unit includes a gas output pipe, a gas delivery pipe and a gas exhaust pipe. The gas output pipe and the gas exhaust pipe are horizontally connected, and the gas delivery pipe is vertically connected at the docking position of the gas output pipe and the gas exhaust pipe. The other end of the gas output pipe is connected to the gas output end of the water gas separator, the other end of the gas delivery pipe is connected to the gas emission measurement component, and the other end of the gas exhaust pipe is connected to the external gas recovery pipeline; the electric ball valve unit includes an output pipe electric ball valve, a delivery pipe electric ball valve and a discharge pipe electric ball valve. The output pipe electric ball valve is installed on the pipe body of the gas output pipe, the delivery pipe electric ball valve is installed on the pipe body of the gas delivery pipe, and the discharge pipe electric ball valve is installed on the pipe body of the gas exhaust pipe.

[0018] As a further solution of the present invention: support rods are fixedly connected to the walls of the outer barrel of the gas emission measurement component on both sides, and support plates are fixedly connected to the upper ends of the two support rods. The support plates are located directly above the bell cover, and the laser displacement sensor and the electric push rod are both installed on the support plates.

[0019] As a further solution of the present invention: a balance wheel is fixedly connected to the upper plate surface of the support plate, a pull rope is wrapped around the wheel body of the balance wheel, one end of the pull rope passes through the support plate and is fixedly connected to the bell cover, and the other end of the pull rope is connected to a counterweight block; the bottom end of the outer barrel is connected to a drain pipe, and a drain valve is installed on the pipe body of the drain pipe.

[0020] The beneficial effects of the present invention are: 1. The present invention is provided with a calcium carbide material conveying component, a calcium carbide quantitative reaction component and a gas generation amount measuring component, and the calcium carbide raw material can be crushed and conveyed by the calcium carbide material conveying component, and a quantitative amount of calcium carbide particles and water can be conveyed to the calcium carbide quantitative reaction component for calcium carbide chemical reaction, and the acetylene gas generated by the reaction is conveyed to the gas generation amount measuring component for gas generation amount measurement, thereby realizing the process-based operation measurement of the calcium carbide gas generation amount; 2. The calcium carbide material conveying assembly provided in the present invention includes a water storage tank and a calcium carbide feed conveying assembly. The calcium carbide feed conveying assembly includes a jaw crusher and a conveyor belt assembly. The conveyor belt assembly is provided with an automatic screening unit and an automatic feeding unit, so that a certain amount of water can be conveyed to the calcium carbide quantitative reaction assembly through a water pipe. After the calcium carbide raw material is crushed by the jaw crusher, a certain amount of calcium carbide particles are conveyed to the calcium carbide quantitative reaction assembly through the conveyor belt assembly, that is, the automatic conveyance of calcium carbide particles and reaction water can be realized, and the adopted water pipe can control the conveying amount of reaction water. The automatic screening unit and the automatic feeding unit can screen the particle uniformity and automatically add calcium carbide particles during the calcium carbide particle conveying process, that is, the gas generation can be accurately measured through precise quantitative conveying, the amount of test samples can be guaranteed, and the final gas generation measurement result can be avoided to be too large or too small. The calcium carbide particle material is transported by the conveyor belt assembly, which replaces manual handling, saves manpower and improves work efficiency. 3. The calcium carbide quantitative reaction component provided in the present invention includes a gas generator and a water-gas separator, the output end of the water-gas separator is connected to a gas transmission pipeline unit, and electric ball valve units are respectively installed on the pipe bodies of each pipeline of the gas transmission pipeline unit, so that the reaction water and the calcium carbide particles can be placed together in the gas generator, that is, the chemical reaction of the calcium carbide particles and water can be realized, and because the added calcium carbide material first enters the feeding unit and then enters the gas generator through the feeding unit, it is possible to first add water quantitatively into the gas generator, and then put the quantitative calcium carbide material into the gas generator at one time, so as to control the order of adding materials, and by controlling the opening and closing of the electric ball valve unit on the pipe body of the corresponding pipeline, the opening and closing of each pipeline can be automatically controlled, that is, the different stages of the measurement process of the measuring device can be automatically controlled to realize fully automatic process measurement; 4. The gas emission measurement component provided in the present invention includes an outer barrel, a bell jar, a laser displacement sensor, a digital remote pressure gauge, an electric push rod and a temperature transmitter. The acetylene gas generated by the chemical reaction is transported into the bell jar. As the acetylene gas enters, the bell jar begins to rise. After the position of the bell jar is stable, the internal pressure of the bell jar, the rising displacement of the bell jar and the internal temperature of the bell jar are measured, and then the gas emission result can be calculated based on the measured data. The temperature measurement can be automated through the temperature transmitter, the pressure reading can be automated through the digital remote pressure gauge, the displacement measurement can be automated through the laser displacement sensor, and the bell jar can be quickly reset through the electric push rod to accelerate the exhaust. That is, in the process of measuring the gas emission, the automatic data measurement can avoid the occurrence of errors in the reading results due to subjective factors in manual measurement, thereby avoiding errors in the calculated gas emission results, that is, it can ensure that the measuring device can achieve accurate measurement of the gas emission of calcium carbide. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view structural diagram of the calcium carbide material conveying assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the water storage tank of the present invention; Figure 4 This is a schematic diagram of the structure of the calcium carbide feed conveying assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the conveyor belt assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the inclined feeding conveyor belt of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the screening box of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the screening box of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the feeding flap assembly of the present invention; Fig.10 This is a schematic diagram of the disassembled structure of the feeding flap assembly of the present invention; Fig.11 This is a schematic diagram of the structure of the calcium carbide quantitative reaction assembly of the present invention; Fig.12 It is a schematic diagram of the cross-sectional structure of the support box of the present invention; Fig.13 It is a schematic diagram of the structure of the feeding unit of the present invention; Fig.14 For the present invention Fig.13 Schematic diagram of the structure at A in the middle; Fig.15 It is a schematic diagram of the structure of the gas emission measurement component of the present invention.

[0022] In the figure: 1, table top; 11, table legs; 2, water storage tank; 21, water pipe; 22, cable hanger; 23, drop-in liquid level sensor; 24, water delivery electric ball valve; 3, calcium carbide feeding and conveying assembly; 31, jaw crusher; 32, inclined feeding conveyor belt; 321, inclined feeding motor; 322, inner concave surface; 323, baffle plate; 33, screening box; 331, guide hopper; 332, small particle collection chamber; 333, large particle collection chamber; 334, large aperture screen; 335, small aperture screen net; 336, guide slot; 337, vibration motor; 34, horizontal feeding conveyor belt; 341, horizontal feeding motor; 35, reversible feeding conveyor belt; 351, reversible feeding motor; 36, feeding flap assembly; 361, side support rod; 362, collecting bottom plate; 363, blocking frame; 364, discharge notch; 365, flip motor; 366, supporting bottom plate; 367, flip bottom plate; 368, flip shaft; 37, support table; 38, feeding funnel; 39, electronic balance; 310 , sample box; 4, calcium carbide quantitative reaction component; 41, gas generator; 42, water-gas separator; 43, water-gas mixing conveying pipe; 44, supporting box; 45, gas output pipe; 46, gas conveying pipe; 47, powder buffer pipe; 48, box cover; 49, gas discharge pipe; 410, output pipe electric ball valve; 411, conveying pipe electric ball valve; 412, slag discharge solenoid valve; 413, drainage solenoid valve; 414, slag collection box; 415, slag screen; 416, feed hopper; 417, Cover plate; 418, connecting block; 419, connecting seat; 420, opening and closing motor; 421, torque sensor; 422, discharge pipe electric ball valve; 5, gas emission measurement component; 51, outer barrel; 52, bell cover; 53, support rod; 54, support plate; 55, balance wheel; 56, pull rope; 57, counterweight; 58, laser displacement sensor; 59, digital remote pressure gauge; 510, electric push rod; 511, drain pipe; 512, drain valve; 513, temperature transmitter; 6, conveyor belt support rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1 like Figure 1 , Figure 2 , Figure 4 , Fig.11 and Fig.15As shown, a fully automatic process-based precise measurement device for calcium carbide gas generation includes a calcium carbide material conveying component, a calcium carbide quantitative reaction component 4 and a gas generation measurement component 5. The calcium carbide material conveying component is arranged on one side of the calcium carbide quantitative reaction component 4, and the gas generation measurement component 5 is arranged on the other side of the calcium carbide quantitative reaction component 4. The calcium carbide raw material can be crushed and conveyed by the calcium carbide material conveying component, and a quantitative amount of calcium carbide particles and water can be conveyed into the calcium carbide quantitative reaction component 4 for calcium carbide chemical reaction, and the acetylene gas generated by the reaction can be conveyed to the gas generation measurement component 5 for gas generation measurement, thereby realizing process-based operation measurement of the calcium carbide gas generation; The calcium carbide material conveying assembly includes a water storage tank 2 and a calcium carbide feeding conveying assembly 3. The water storage tank 2 is arranged on one side of the calcium carbide feeding conveying assembly 3. The calcium carbide feeding conveying assembly 3 includes a jaw crusher 31 and a conveyor belt assembly. The bottom end of the water storage tank 2 is connected with a water pipe 21. The other end of the water pipe 21 is connected to the calcium carbide quantitative reaction assembly 4. The conveying front end of the conveyor belt assembly is located below the discharge port of the jaw crusher 31. The conveying end of the conveyor belt assembly is located at the upper end of the calcium carbide quantitative reaction assembly 4. The conveyor belt assembly is provided with an automatic screening unit and an automatic feeding unit, so as to be able to convey a certain amount of water to the calcium carbide quantitative reaction assembly 4 through the water pipe 21, and the calcium carbide raw material is conveyed to the jaw crusher 31. After the material is crushed, the quantitative calcium carbide particles are transported to the calcium carbide quantitative reaction component 4 via the conveyor belt assembly, that is, the automatic transportation of calcium carbide particles and reaction water can be realized, and the water pipe 21 used can control the transportation amount of reaction water. The automatic screening unit and the automatic feeding unit can screen the particle uniformity and automatically add calcium carbide particles during the transportation of calcium carbide particles, that is, the gas emission can be accurately measured through precise quantitative transportation, the amount of test samples is guaranteed, and the final gas emission measurement result is avoided to be too large or too small. The calcium carbide particle material is transported by the conveyor belt assembly, which replaces manual handling, saves manpower and improves work efficiency. It should be noted that according to GB / T 10665-2004 Calcium Carbide (Calcium Carbide), the crushing particle size range is 5-12 mm[1]. In order to meet the particle size required for inspection, a crusher is required to crush the calcium carbide sample to provide sample particles of the specified size of 5-12 mm for the inspection of the calcium carbide sample.

[0025] Common types of crushers include jaw crusher, impact crusher, cone crusher, hammer crusher, vertical shaft impact crusher, roller crusher, etc. Cone crusher has the advantages of high automation, high production efficiency, low unit power consumption, stable operation and low energy consumption, but it is complex in structure, high in cost, difficult to maintain, and high in body, which is not suitable for laboratory use. Therefore, it is not selected; hammer crusher has the advantages of high production capacity, large crushing ratio, low power consumption, simple mechanical structure, compact and light, but it is not selected due to its large size and long maintenance time; impact jaw crusher has the advantages of high crushing efficiency, complete discharging particle shape, multi-angle and multi-edge, good quality, adjustable gap, which can effectively control the discharging particle size, simple structure, and convenient maintenance. However, the plate hammer and impact plate are particularly easy to wear and need to be replaced frequently, which is not conducive to long-term use, so they are not selected; the vertical shaft impact crusher has the advantages of optimized crushing chamber, which can increase the material throughput by 30%, and the equipment has the functions of sand making and shaping, but the hammer, throwing head, peripheral guard plate, liner, etc. wear quickly during use, which is not conducive to long-term use, so it is not selected; the advantages of roller crusher are simple structure, convenient installation, high reliability, low price, convenient maintenance, uniform crushing product particle size, small over-crushing, fine product crushing particle size, but it cannot handle large blocks and hard materials, and calcium carbide has a high hardness, so it is not selected; the jaw crusher has high crushing force, large crushing ratio, large processing capacity, simple structure, and easy maintenance, so the jaw crusher is selected. Considering the laboratory environment and the specified particle size, the jaw crusher 31 selects a 380V laboratory small jaw crusher with a discharge particle size of 5-12mm.

[0026] The calcium carbide quantitative reaction component 4 includes a gas generator 41 and a water-gas separator 42. The side of the gas generator 41 is connected to the other end of the water pipe 21. The upper end of the gas generator 41 is connected to a feed unit, and the feed unit is located directly below the automatic feeding unit. A water-gas mixing delivery pipe 43 is connected between the gas generator 41 and the water-gas separator 42. The output end of the water-gas separator 42 is connected to a gas pipeline unit. Electric ball valve units are installed on the pipe bodies of each pipeline of the gas pipeline unit, so that the reaction water and calcium carbide particles can be placed together in the gas generator 41, that is, the calcium carbide can be realized. The chemical reaction between the particles and water, and because the added calcium carbide material first enters the feed unit and then enters the gas generator 41 through the feed unit, it is possible to first add a certain amount of water into the gas generator 41, and then put a certain amount of calcium carbide material into the gas generator 41 at one time, so as to control the order of adding materials, and by controlling the opening and closing of the electric ball valve unit on the corresponding pipeline body, the opening and closing of each pipeline can be automatically controlled, that is, the different stages of the measurement process of the measuring device can be automatically controlled to realize fully automatic process measurement; The gas emission measurement component 5 includes an outer barrel 51, a bell jar 52, a laser displacement sensor 58, a digital remote pressure gauge 59, an electric push rod 510 and a temperature transmitter 513. The bottom end of the outer barrel 51 is connected to the delivery end of the gas pipeline unit. The outer barrel 51 is filled with sealing liquid. The bell jar 52 is movably placed in the outer barrel 51. The digital remote pressure gauge 59 and the temperature transmitter 513 are both installed at the upper end of the bell jar 52, and the probe ends of the digital remote pressure gauge 59 and the temperature transmitter 513 are both located in the bell jar 52. The laser displacement sensor 58 and the electric push rod 510 are fixedly connected above the bell jar 52 in a suspended state. The laser displacement sensor 58, the digital remote pressure gauge 59, the electric push rod 510 and the temperature transmitter 513 are all connected to the peripheral terminal for signal transmission. By delivering the acetylene gas generated by the chemical reaction into the bell jar 52, With the entry of acetylene gas, the bell jar 52 begins to rise. After the position of the bell jar 52 is stabilized, the internal pressure of the bell jar 52, the rising displacement of the bell jar 52 and the internal temperature of the bell jar are measured, and then the gas emission result can be calculated based on the measured data. The temperature measurement can be automated through the temperature transmitter 513, the pressure reading can be automated through the digital display remote pressure gauge 59, the displacement measurement can be automated through the laser displacement sensor 58, and the bell jar 52 can be quickly reset through the electric push rod 510 to accelerate the exhaust. In other words, in the process of measuring the gas emission, the automatic data measurement can avoid the occurrence of errors in the reading results due to subjective factors in manual measurement, thereby avoiding errors in the calculated gas emission results, that is, it can ensure that the measuring device can achieve accurate measurement of the gas emission of calcium carbide.

[0027] It should be noted that the use of temperature transmitters to automatically measure temperature and transmit temperature signals remotely to the system can replace the original thermometer and manual readings, realize temperature measurement automation, and effectively reduce errors.

[0028] Temperature transmitters are divided into thermal resistor temperature transmitters, thermocouple temperature transmitters, and non-contact temperature transmitters. Thermal resistor temperature transmitters have the advantages of high measurement accuracy, good stability, fast response speed, and strong anti-interference ability, but the measurement range is small and the response speed to temperature changes is slow. Thermocouple temperature transmitters have a large measurement range and a fast response speed to temperature changes. But the stability is poor and the anti-interference ability is weak. Non-contact temperature transmitters (such as infrared temperature transmitters) are mainly used to measure the surface temperature of moving objects, small volumes, and objects with instantaneous temperature changes. The gas emission detection experiment process is short, and it needs to respond quickly to temperature changes, and can be remotely transmitted and automatically recorded. In summary, the characteristics of the temperature transmitter, temperature transmitter 513 selects a thermocouple temperature transmitter.

[0029] According to GB / T 10665-2004 Calcium Carbide (Calcium Carbide), the temperature measurement range is 0-50℃, accurate to 0.1℃, and the calibration operation is carried out at a temperature of (20±2)℃. The measured temperature is more accurate between one-third and two-thirds of the range. Select a thermocouple temperature transmitter with a measurement range of 0-50 degrees and an accuracy level of 0.5%. The output signal is 4-20mA and the power supply is 24V.

[0030] According to GB / T 10665-2004, the existing measurement method of calcium carbide (calcium carbide) is liquid column pressure gauge measurement, which needs to be transformed into a pressure gauge that can be remotely transmitted and automatically record the reading. If the pressure gauge is lower than 1 / 3 of the range, the accuracy is low and it cannot be accurately measured. When selecting the upper limit of measurement, in order to make the pressure gauge work stably and accurately and maintain its service life, it should generally be greater than 1 / 3 of the maximum use pressure. The measurement range is one-third to two-thirds of the full range with higher accuracy. According to GB / T 10665-2004, the pressure gauge accuracy of calcium carbide (calcium carbide) is 0.1kPa, under standard atmospheric pressure. Digital remote pressure gauge 59 selects a precision digital remote gauge with a range of 0-100kPa and an accuracy level of 0.5%FS. Output signal 4-20mA, power supply 24V.

[0031] The use of laser displacement sensors to replace manual readings can automatically record the initial position and the final position after the bell is balanced to obtain the displacement result, and transmit the distance signal back to the system, reducing the error caused by manual reading. At present, laser displacement sensors can be divided into two types according to the principle: laser triangulation and laser echo analysis. Among them, laser triangulation is suitable for precise measurement, and laser echo analysis can be applied to long-distance measurement. According to GB / T 10665-2004, the bell movement distance of the calcium carbide (calcium carbide) gas emission measurement device is short and the reading requires high accuracy. A laser displacement sensor with the measurement principle of laser triangulation is selected. Through on-site observation, the average rising distance of the bell does not exceed 1m. The laser displacement sensor 58 selects a laser displacement sensor with a measurement distance of 0.1m-1m, a measurement error of ± (2mm+d*one ten-thousandth), and a rated voltage of 24V to meet the measurement distance and accuracy requirements.

[0032] Embodiment 2 Improvements based on Example 1: like Figure 1 , Figure 2 and Figure 3As shown, a table top 1 is arranged below the material conveying assembly, and table legs 11 are vertically connected to the four corners of the table top 1. The water tank 2 and the calcium carbide feeding conveying assembly 3 of the calcium carbide material conveying assembly are fixedly connected to the upper surface of the table top 1. The water pipe 21 connected to the water tank 2 is located below the table top 1, and the body of the water pipe 21 passes through the table top 1. By fixing the calcium carbide material conveying assembly on the table top 1, it is convenient for the measurement personnel to operate on the table top 1 when adding materials.

[0033] Furthermore, a cable hanger 22 is connected to the top of the water tank 2, and a immersion liquid level sensor 23 is inserted in the water tank 2. The pipeline of the immersion liquid level sensor 23 is fixedly connected to the cable hanger 22, and a water supply electric ball valve 24 is installed on the body of the water supply pipe 21. The cable hanger 22 fixes the pipeline of the immersion liquid level sensor 23 to ensure that the immersion liquid level sensor 23 can be vertically inserted in the water tank 2, so that the immersion liquid level sensor 23 can measure the liquid level in the tank, and the output signal can be fed back to the external terminal to control the water intake, replacing the manual water adding process and improving the accuracy of liquid level control. At the same time, the water supply electric ball valve 24 can automatically control the opening and closing of the water supply pipe 21, and cooperate with the immersion liquid level sensor 23 to measure the liquid level in the tank in real time to ensure the accuracy of water delivery.

[0034] like Figure 1 , Figures 4 to 10 As shown, the conveyor belt assembly of the calcium carbide feeding conveyor assembly 3 includes an inclined feeding conveyor belt 32, a horizontal feeding conveyor belt 34 and a reversible feeding conveyor belt 35. The inclined bottom end of the inclined feeding conveyor belt 32 is located below the discharge port of the jaw crusher 31, the inclined upper end of the inclined feeding conveyor belt 32 is located above the horizontal feeding conveyor belt 34, and an automatic screening unit is arranged between the inclined upper end of the inclined feeding conveyor belt 32 and the horizontal feeding conveyor belt 34, the horizontal feeding conveyor belt 34 is located above the reversible feeding conveyor belt 35, and a feeding funnel 38 is arranged between the conveying end of the horizontal feeding conveyor belt 34 and the belt body of the reversible feeding conveyor belt 35, the automatic feeding unit is located just below one end of the reversible feeding conveyor belt 35, and the reversible feeding conveyor belt 35 A sample box 310 is provided just below one end, and the calcium carbide particles crushed by the jaw crusher 31 can be conveyed upward through the inclined feeding conveyor belt 32, so that the crushed calcium carbide particles can enter the automatic screening unit for screening, so that the calcium carbide particles that meet the requirements are further conveyed by the horizontal feeding conveyor belt 34, and the calcium carbide particles that meet the requirements are conveyed to the reversible feeding conveyor belt 35 through the feeding funnel 38, and part of the calcium carbide particles are conveyed to the automatic feeding unit through the reversible feeding conveyor belt 35. When a certain amount of calcium carbide particles is conveyed to the automatic feeding unit, the reversible feeding conveyor belt 35 rotates in the opposite direction to convey the excess calcium carbide particles to the sample box 310, so that the automatic screening and automatic quantitative conveying of the calcium carbide particles can be realized; Furthermore, the inclined feeding conveyor belt 32, the horizontal feeding conveyor belt 34 and the reversible feeding conveyor belt 35 are vertically connected with conveyor belt support rods 6 on both sides, and the bottom ends of the conveyor belt support rods 6 are fixedly connected to the table board 1, and the table board 1 is also fixedly connected to a support platform 37, the bottom end of the automatic screening unit is movably engaged on the support platform 37, and the two sides of the feeding funnel 38 are respectively fixedly connected to the rod body of the conveyor belt support rod 6 connected to the conveying end of the horizontal feeding conveyor belt 34, so that each conveyor belt of the conveyor belt assembly can be fixedly placed through the conveyor belt support rods 6, the placement position of the automatic screening unit can be fixed through the support platform 37, and the installation position of the feeding funnel 38 can be fixed through the conveyor belt support rod 6 connected to the conveying end of the horizontal feeding conveyor belt 34; Furthermore, the rotating roller at one end of the inclined feeding conveyor belt 32 is coaxially connected to the inclined feeding motor 321, the rotating roller at one end of the horizontal feeding conveyor belt 34 is coaxially connected to the horizontal feeding motor 341, and the rotating roller at one end of the reversible feeding conveyor belt 35 is coaxially connected to the reversible feeding motor 351, so that each conveyor belt of the conveyor belt assembly can be driven to rotate by the provided feeding motors, thereby realizing the directional transportation of the calcium carbide granular material; Furthermore, the outer side surface of the inclined feeding conveyor belt 32 is set as an inner concave surface 322, and the outer side surface of the inclined feeding conveyor belt 32 is also fixedly connected to a plurality of equally distributed baffle plates 323 to ensure that when the inclined feeding conveyor belt 32 transports the calcium carbide particle objects upward, the inner concave surface 322 can prevent the calcium carbide particle materials from rolling to both sides, and the baffle plates 323 can prevent the calcium carbide particle materials from sliding downward, so as to ensure the smooth transportation of the calcium carbide particle materials.

[0035] Furthermore, the automatic screening unit includes a screening box 33, a guide hopper 331 and a vibration motor 337. A small particle collection chamber 332 and a large particle collection chamber 333 are arranged in the screening box 33 through a partition. A large-aperture screen 334 and a small-aperture screen 335 are connected in the small-aperture screen 332. The large-aperture screen 334 and the small-aperture screen 335 are arranged in an opposite direction, and the large-aperture screen 334 is located above the small-aperture screen 335. The mesh body is located directly below the conveying end of the inclined feeding conveyor belt 32, the inclined end of the large-aperture screen 334 is connected to the cavity opening of the large-particle collection cavity 333, a material guide groove 336 is opened on one side of the cavity wall of the small-particle collection cavity 332 of the screening box 33, the inclined end of the small-aperture screen 335 is fixedly connected to the opening position of the material guide groove 336, the material guide hopper 331 is connected to the outside of the material guide groove 336, and the vibration motor 337 is fixedly connected to the outer wall of the screening box 33 In order to make the calcium carbide particles fall into the automatic screening unit, the calcium carbide particles are first screened through the large-aperture screen 334 to screen out the larger calcium carbide particles, and the screened larger calcium carbide particles are collected in the large particle collection chamber 333 under the action of the inclined mesh of the large-aperture screen 334, and then the calcium carbide particles that have been screened once fall onto the small-aperture screen 335 for secondary screening to screen out the smaller calcium carbide particles, and the screened smaller calcium carbide particles directly fall into the small particle collection chamber 332, while the calcium carbide particles that have not been screened by the small-aperture screen 335 are transported to the material guide slot 336 under the action of the inclined mesh of the small-aperture screen 335, and then can be discharged by the material guide hopper 331, and the vibration motor 337 is set to completely separate and slide the calcium carbide particles through vibration, and the double-layer screen can be used to separate particles outside the specified particle size, instead of manual screening, so that the screening speed is more efficient and the screening particle size is more standardized.

[0036] It should be noted that according to the particle size of 5-12mm specified in GB / T 10665-2004 calcium carbide (calcium carbide), a double-layer screen is made. The upper screen allows particles with a size of less than 12mm to pass through, and the lower screen allows particles with a size of less than 5mm to pass through, thereby screening out particles with a size of 5-12mm. A motor is installed at the top of the screen, and the particles are completely separated and slide down through the vibration of the motor. The double-layer screen can separate particles outside the specified particle size, replacing manual screening, making the screening speed more efficient and the screening particle size more standardized.

[0037] Furthermore, the automatic feeding unit includes a feeding flap assembly 36 and an electronic balance 39, the bottom end of the electronic balance 39 is fixedly connected to the table top 1, the feeding flap assembly 36 includes a side support rod 361, a flip motor 365, a support base plate 366 and a flip base plate 367, the side support rod 361 is fixedly connected to the short sides of the support base plate 366, the flip base plate 367 is movably arranged above the support base plate 366, the support base plate 366 is fixedly connected to the upper end of the electronic balance 39, and one long side of the flip base plate 367 is fixedly connected with a flip shaft 368. One end of the two side support rods 361 is fixedly connected with a flip motor 365, and the flip motor 365 is respectively fixedly connected to the two ends of the flip shaft 368 coaxially, so that the calcium carbide particles dropped on the automatic feeding unit can be accurately weighed by the electronic balance 39. When the transported calcium carbide particles reach the required weight, the two flip motors 365 can provide driving force to the flip shaft 368 at the same time, thereby driving the flip bottom plate 367 to flip, so as to transport the weighed calcium carbide particles to the calcium carbide quantitative reaction component 4, thereby realizing automatic feeding of the calcium carbide particles. It should be noted that according to GB / T 10665-2004 Calcium Carbide (Calcium Carbide), 50g of calcium carbide sample particles are taken to react with water in each experiment, accurate to 0.1g[1]. Therefore, a high-precision electronic balance is selected. A flap is installed under the balance, and the material on the balance is transferred using the flap, replacing the manual handling process and realizing measurement automation.

[0038] The types of electronic balance weighing sensors include S-type weighing sensors, single-point weighing sensors, shear beam weighing sensors, circular plate weighing sensors, axle pin sensors, and column weighing sensors. S-type sensors are mainly used to measure the tension and pressure of solids. Although the range is small, common types include (5kg, 7.5kg), etc. However, it is still far higher than the measurement range required for this transformation process. Therefore, it is not used; shear beam weighing sensors have complex structures, difficult installation, high manufacturing costs, poor overload capacity, and large space occupation. They are mainly used for tank weighing and low-profile process applications. Therefore, it is not selected; the target audience of the circular plate weighing sensor is users of medium and large scale weighing, and it provides sensors suitable for narrow venues. There is no such demand in this renovation, so it is not used; the axle pin sensor and column sensor are used for large-scale environmental measurement, so they are not selected; the weighing value is more accurate between one-third and two-thirds of the balance range. The sample is weighed 50g each time, and the electronic balance 39 with a range of 100g and an accuracy of 0.01g can be measured more accurately.

[0039] Furthermore, the upper plate surface of the flip bottom plate 367 is fixedly connected to the aggregate bottom plate 362, and a material blocking frame 363 is connected to the edge of the aggregate bottom plate 362, and a discharge notch 364 is opened on one side of the material blocking frame 363, and the opening position of the discharge notch 364 is close to the long side of the flip bottom plate 367 connected to the flip axis 368, so that the material blocking frame 363 can prevent the calcium carbide particles that fall on the aggregate bottom plate 362 from scattering, and when the aggregate bottom plate 362 is flipped along with the flip bottom plate 367, the calcium carbide particles can be discharged through the discharge notch 364, so as to ensure that the calcium carbide particles can accurately fall on the feeding unit of the calcium carbide quantitative reaction component 4.

[0040] like Figure 1 , Figures 11 to 14 As shown, the calcium carbide quantitative reaction component 4 also includes a supporting box body 44, the bottom ends of the gas generator 41 and the water-gas separator 42 are fixedly connected in the supporting box body 44, the box wall of the supporting box body 44 is movably connected with a box cover 48, the box of the supporting box body 44 is movably engaged with a slag collecting box 414, and a slag screen 415 is horizontally connected in the slag collecting box 414, the bottom discharge pipe of the gas generator 41 is connected with a slag discharge solenoid valve 412, and the bottom discharge pipe of the water-gas separator 42 is connected with a water discharge solenoid valve 413, so that the installation positions of the gas generator 41 and the water-gas separator 42 can be fixed by the supporting box body 44, and the reaction material slag in the gas generator 41 and the separated water in the water-gas separator 42 can be automatically discharged by opening and closing the slag discharge solenoid valve 412 and the water discharge solenoid valve 413, so as to facilitate the use of the calcium carbide quantitative reaction component 4 for calcium carbide gasification reaction in the next measurement.

[0041] Furthermore, the feeding unit includes a powder buffer tube 47, a feeding hopper 416, a cover plate 417, a connecting block 418, a connecting seat 419, an opening and closing motor 420, and a torque sensor 421. The tube body of the powder buffer tube 47 is fixedly connected to the upper end opening of the gas generator 41, the feeding hopper 416 is connected to the upper end of the powder buffer tube 47, the cover plate 417 is movably connected to the bottom end of the powder buffer tube 47, the edge of the cover plate 417 is fixedly connected with a connecting block 418, one side of the bottom end tube wall of the powder buffer tube 47 is fixedly connected with a connecting seat 419, the connecting block 418 is rotatably connected to the connecting seat 419 through a rotating shaft, the two sides of the connecting seat 419 are respectively connected to the opening and closing motor 420 and the torque sensor 421, and the opening and closing motor 420 and the torque sensor 421 The sensors 421 are respectively fixedly connected to the two ends of the rotating shaft between the connecting block 418 and the connecting seat 419, and the calcium carbide granular materials can be easily buffered in the powder buffer tube 47 through the feed hopper 416, and the connecting block 418 can be driven to rotate relative to the connecting seat 419 by the opening and closing motor 420, so as to realize the opening and closing of the cover plate 417, that is, the calcium carbide granular materials buffered in the powder buffer tube 47 can be dropped into the gas generator 41 at one time, and the torque sensor 421 provided can measure the torque of the opening and closing motor 420 on the rotating shaft, and the opening and closing motor 420 can be used to make the cover plate 417 seal the bottom end of the powder buffer tube 47 more tightly, replacing the manual valve closing work, and realizing the automation of the feeding process; Furthermore, the gas pipeline unit includes a gas output pipe 45, a gas delivery pipe 46 and a gas exhaust pipe 49, the gas output pipe 45 and the gas exhaust pipe 49 are horizontally connected, the gas delivery pipe 46 is vertically connected at the docking position of the gas output pipe 45 and the gas exhaust pipe 49, the other end of the gas output pipe 45 is connected to the gas output end of the water-gas separator 42, the other end of the gas delivery pipe 46 is connected to the gas emission measurement component 5, and the other end of the gas exhaust pipe 49 is connected to the external gas recovery pipeline; the electric ball valve unit includes an output pipe electric ball valve 410, a delivery pipe electric ball valve 411 and an exhaust pipe electric ball valve 422, the output pipe electric ball valve 410 is installed on the pipe body of the gas output pipe 45, the delivery pipe electric ball valve 411 is installed on the pipe body of the gas delivery pipe 46, and the exhaust pipe electric ball valve 422 is installed on the pipe body of the gas exhaust pipe 49, so as to be able to control the output pipe electric ball valve 410 and The discharge pipe electric ball valve 422 is opened, and the delivery pipe electric ball valve 411 is closed, so that the gas output pipe 45 is connected to the gas discharge pipe 49, and the excess gas in the water-gas separator 42 can be discharged conveniently at this time. By controlling the output pipe electric ball valve 410 and the delivery pipe electric ball valve 411 to be opened, and the discharge pipe electric ball valve 422 to be closed, the gas output pipe 45 is connected to the gas delivery pipe 46, and the acetylene gas separated from the water and gas can be transported to the gas emission measurement component 5 for gas emission measurement. By controlling the delivery pipe electric ball valve 411 and the discharge pipe electric ball valve 422 to be opened, and the output pipe electric ball valve 410 to be closed, the gas delivery pipe 46 is connected to the gas discharge pipe 49, and the measured acetylene gas can be discharged at this time. That is, by controlling the opening and closing of each electric ball valve of the electric ball valve unit, the measuring device can be automatically controlled to meet different measurement requirements, and the entire measurement process can be automated.

[0042] It should be noted that electric valves are selected to replace the valves in various parts of the original equipment, which can receive control signals to automatically open and close, replacing manual opening and closing of valves, and realizing automatic control of exhaust and liquid discharge.

[0043] The types of valves include butterfly valve, ball valve, gate valve, and stop valve, and the ball valve was finally selected. The butterfly valve is not selected because of its poor sealing performance compared with the ball valve. The gate valve takes a long time to open and close, and requires a large enough space and time, so it is not selected. The internal structure of the stop valve changes the flow direction of the medium through the valve, which increases the resistance. This results in a slow exhaust speed. Therefore, it is not selected. The ball valve has good sealing performance and a small size. It has the lowest flow resistance and a large flow rate. It can quickly exhaust gas. Therefore, a ball valve is selected with an electric actuator. It can be opened and closed automatically. The nominal diameter of the pipeline is 20mm, and the ball valve specification DN20 is selected.

[0044] like Figure 1 and Fig.15As shown, support rods 53 are fixedly connected to the barrel walls of the outer barrel 51 of the gas emission measurement component 5 on both sides, and support plates 54 are fixedly connected to the upper ends of the two support rods 53. The support plates 54 are located directly above the bell jar 52. The laser displacement sensor 58 and the electric push rod 510 are both installed on the support plates 54, so that the laser displacement sensor 58 and the electric push rod 510 can be fixedly installed through the support plates 54, so that the laser displacement sensor 58 and the electric push rod 510 can be suspended above the bell jar 52, thereby facilitating the automation of displacement measurement through the laser displacement sensor 58, and the bell jar 52 can be quickly reset through the electric push rod 510 to accelerate the exhaust.

[0045] Furthermore, a balance wheel 55 is fixedly connected to the upper plate surface of the support plate 54, and a pull rope 56 is wound around the wheel body of the balance wheel 55. One end of the pull rope 56 passes through the support plate 54 and is fixedly connected to the bell jar 52, and the other end of the pull rope 56 is connected to a counterweight 57, so that the counterweight 57 and the bell jar 52 can be in force balance through the pull rope 56, and then when acetylene gas is introduced into the bell jar 52, the bell jar 52 will be pushed up, that is, the gas amount of acetylene gas can be measured according to the distance the bell jar 52 moves upward; Furthermore, the bottom end of the outer barrel 51 is connected to a drain pipe 511, and a drain valve 512 is installed on the body of the drain pipe 511. The drain valve 512 can be used to control the opening and closing of the drain pipe 511, thereby facilitating the control of the discharge of the sealing liquid in the outer barrel 51.

[0046] Working principle: The calcium carbide particles crushed by the jaw crusher 31 are conveyed upward by the inclined feeding conveyor belt 32, so that the crushed calcium carbide particles can enter the automatic screening unit for screening, so that the calcium carbide particles that meet the requirements are further conveyed by the horizontal feeding conveyor belt 34, and the calcium carbide particles that meet the requirements are conveyed to the reversible feeding conveyor belt 35 through the feeding funnel 38. Part of the calcium carbide particles are conveyed to the automatic feeding unit through the reversible feeding conveyor belt 35, and the calcium carbide particles that fall on the automatic feeding unit are accurately weighed by the electronic balance 39. When the conveyed calcium carbide particles are After the particles reach the required weight, the two flip motors 365 can provide driving force to the flip shaft 368 at the same time, thereby driving the flip bottom plate 367 to flip, so as to transport the weighed calcium carbide particles to the calcium carbide quantitative reaction component 4, so as to realize automatic feeding of the calcium carbide particles. When the automatic feeding unit transports a certain amount of calcium carbide particles, the reversible feeding conveyor belt 35 rotates in the opposite direction to transport the excess calcium carbide particles to the sample box 310, so as to realize automatic screening and automatic quantitative transportation of the calcium carbide particles; a certain amount of water is transported to the calcium carbide quantitative reaction component 4 through the water pipe 21; The calcium carbide particle material can be easily cached in the powder cache tube 47 through the feed hopper 416, and the connecting block 418 can be driven to rotate relative to the connecting seat 419 through the opening and closing motor 420, thereby driving the cover plate 417 to open and close, that is, the calcium carbide particle material cached in the powder cache tube 47 can be dropped into the gas generator 41 at one time, and the torque sensor 421 set can measure the torque of the opening and closing motor 420 on the rotating shaft, and the opening and closing motor 420 can be used to make the cover plate 417 seal the bottom end of the powder cache tube 47 more tightly, replacing the manual valve closing work, and realizing the automation of the feeding process; the reaction water and calcium carbide particles are used together Placed in the gas generator 41, the chemical reaction between calcium carbide particles and water can be realized, and because the added calcium carbide material first enters the feeding unit and then enters the gas generator 41 through the feeding unit, it is possible to first add a quantitative amount of water into the gas generator 41, and then put a quantitative amount of calcium carbide material into the gas generator 41 at one time, so as to control the order of adding materials, and by controlling the opening and closing of the electric ball valve unit on the corresponding pipeline body, the opening and closing of each pipeline can be automatically controlled, that is, the different stages of the measurement process of the measuring device can be automatically controlled to realize fully automatic process measurement; Acetylene gas generated by the chemical reaction is transported into the bell jar 52. As the acetylene gas enters, the bell jar 52 begins to rise. After the position of the bell jar 52 is stabilized, the internal pressure of the bell jar 52, the rising displacement of the bell jar 52 and the internal temperature of the bell jar are measured, and then the gas emission result can be calculated based on the measured data. The temperature measurement can be automated through the temperature transmitter 513, the pressure reading can be automated through the digital display remote pressure gauge 59, the displacement measurement can be automated through the laser displacement sensor 58, and the bell jar 52 can be quickly reset through the electric push rod 510 to accelerate the exhaust. In other words, in the process of measuring the gas emission, the automatic data measurement can avoid the occurrence of errors in the reading results due to subjective factors in manual measurement, thereby avoiding errors in the calculated gas emission results, that is, it can ensure that the measuring device can achieve accurate measurement of the gas emission of calcium carbide.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully automatic process-based device for accurately measuring the gas generation amount of calcium carbide, comprising a calcium carbide material conveying component, a calcium carbide quantitative reaction component (4) and a gas generation amount measuring component (5), characterized in that: The calcium carbide material conveying component is arranged on one side of the calcium carbide quantitative reaction component (4), and the gas generation volume measuring component (5) is arranged on the other side of the calcium carbide quantitative reaction component (4); The calcium carbide material conveying assembly comprises a water storage tank (2) and a calcium carbide feed conveying assembly (3), wherein the water storage tank (2) is arranged on one side of the calcium carbide feed conveying assembly (3), and the calcium carbide feed conveying assembly (3) comprises a jaw crusher (31) and a conveyor belt assembly, wherein the bottom end of the water storage tank (2) is connected to a water pipe (21), and the other end of the water pipe (21) is connected to a calcium carbide quantitative reaction assembly (4), the conveying front end of the conveyor belt assembly is located below the discharge port of the jaw crusher (31), and the conveying end of the conveyor belt assembly is located at the upper end of the calcium carbide quantitative reaction assembly (4), and the conveyor belt assembly is provided with an automatic screening unit and an automatic feeding unit; The calcium carbide quantitative reaction assembly (4) comprises a gas generator (41) and a water-gas separator (42); the side of the gas generator (41) is connected to the other end of the water delivery pipe (21); the upper end of the gas generator (41) is connected to a feed unit, and the feed unit is located directly below the automatic feeding unit; a water-gas mixing delivery pipe (43) is connected between the gas generator (41) and the water-gas separator (42); the output end of the water-gas separator (42) is connected to a gas delivery pipeline unit; and electric ball valve units are respectively installed on the pipe bodies of the pipelines of the gas delivery pipeline unit; The gas emission measurement assembly (5) comprises an outer barrel (51), a bell jar (52), a laser displacement sensor (58), a digital remote pressure gauge (59), an electric push rod (510) and a temperature transmitter (513); the bottom end of the outer barrel (51) is connected to the delivery end of the gas pipeline unit; the outer barrel (51) is filled with sealing liquid; the bell jar (52) is movably mounted in the outer barrel (51); the digital remote pressure gauge (59) and the temperature transmitter (513) are connected to the outer barrel (51) and the bell jar (52) are movably mounted in the outer barrel (51); 3) are all installed at the upper end of the bell jar (52), and the probe ends of the digital remote pressure gauge (59) and the temperature transmitter (513) are both located in the bell jar (52), the laser displacement sensor (58) and the electric push rod (510) are fixedly connected above the bell jar (52) in a suspended state, and the laser displacement sensor (58), the digital remote pressure gauge (59), the electric push rod (510) and the temperature transmitter (513) are all connected to the peripheral terminal for signal transmission.

2. The fully automatic process-based accurate measurement device for calcium carbide gas generation according to claim 1 is characterized in that: A table top (1) is arranged below the calcium carbide material conveying assembly, and table legs (11) are vertically connected to the four corners of the table top (1). The water storage tank (2) and the calcium carbide feed conveying assembly (3) of the calcium carbide material conveying assembly are both fixedly connected to the upper surface of the table top (1), and the water pipe (21) connected to the water storage tank (2) is located below the table top (1), and the pipe body of the water pipe (21) passes through the table top (1).

3. The fully automatic process-based accurate measurement device for calcium carbide gas generation according to claim 1 is characterized in that: The top of the water storage tank (2) is connected to a cable hanger (22), a submersible liquid level sensor (23) is inserted into the water storage tank (2), a pipeline of the submersible liquid level sensor (23) is fixedly connected to the cable hanger (22), and a water delivery electric ball valve (24) is installed on the body of the water delivery pipe (21).

4. The fully automatic process-based accurate measurement device for calcium carbide gas generation according to claim 1 is characterized in that: The conveyor belt assembly of the calcium carbide feeding and conveying assembly (3) comprises an inclined feeding conveyor belt (32), a horizontal feeding conveyor belt (34) and a reversible feeding conveyor belt (35), wherein the inclined bottom end of the inclined feeding conveyor belt (32) is located below the discharge port of the jaw crusher (31), the inclined upper end of the inclined feeding conveyor belt (32) is located above the horizontal feeding conveyor belt (34), and the inclined upper end of the inclined feeding conveyor belt (32) is in contact with the horizontal feeding conveyor belt. (34), an automatic screening unit is arranged between the horizontal feeding conveyor belt (34) and the reversible feeding conveyor belt (35), the horizontal feeding conveyor belt (34) is located above the reversible feeding conveyor belt (35), and a feeding funnel (38) is arranged between the conveying end of the horizontal feeding conveyor belt (34) and the belt body of the reversible feeding conveyor belt (35), the automatic feeding unit is located directly below one end of the reversible feeding conveyor belt (35), and a sample retention box (310) is arranged directly below the other end of the reversible feeding conveyor belt (35); The inclined feeding conveyor belt (32), the horizontal feeding conveyor belt (34) and the reversible feeding conveyor belt (35) are vertically connected to conveyor belt support rods (6), and the bottom ends of the conveyor belt support rods (6) are fixedly connected to the table board (1), and the table board (1) is also fixedly connected to a support platform (37), the bottom end of the automatic screening unit is movably engaged with the support platform (37), and the two sides of the feeding funnel (38) are respectively fixedly connected to the rod body of the conveyor belt support rod (6) connected to the conveying end of the horizontal feeding conveyor belt (34); The rotating roller at one end of the inclined feeding conveyor belt (32) is coaxially connected to an inclined feeding motor (321), the rotating roller at one end of the horizontal feeding conveyor belt (34) is coaxially connected to a horizontal feeding motor (341), and the rotating roller at one end of the reversible feeding conveyor belt (35) is coaxially connected to a reversible feeding motor (351); The outer side surface of the belt body of the inclined feeding conveyor belt (32) is arranged as an inner concave surface (322), and a plurality of equally spaced baffle plates (323) are fixedly connected to the outer side surface of the belt body of the inclined feeding conveyor belt (32).

5. The fully automatic process-based accurate measurement device for the gas generation of calcium carbide according to claim 4 is characterized by: The automatic screening unit comprises a screening box (33), a guide hopper (331) and a vibration motor (337); a small particle collection chamber (332) and a large particle collection chamber (333) are provided in the screening box (33) via a partition; a large-aperture screen (334) and a small-aperture screen (335) are connected in the small-aperture screen (332); the large-aperture screen (334) and the small-aperture screen (335) are arranged in opposite directions and are inclined; the large-aperture screen (334) is located above the small-aperture screen (335); The mesh body is located directly below the conveying end of the inclined feeding conveyor belt (32); the inclined end of the large-aperture screen (334) is connected to the cavity opening of the large-particle collection cavity (333); a material guide groove (336) is provided on one side of the cavity wall of the small-particle collection cavity (332) of the sieving box (33); the inclined end of the small-aperture screen (335) is fixedly connected to the opening position of the material guide groove (336); the material guide hopper (331) is connected to the outside of the material guide groove (336); and the vibration motor (337) is fixedly connected to the outer wall of the sieving box (33).

6. The fully automatic process-based accurate measurement device for the gas generation of calcium carbide according to claim 5 is characterized by: The automatic feeding unit comprises a feeding flap assembly (36) and an electronic balance (39), wherein the bottom end of the electronic balance (39) is fixedly connected to the table top (1), and the feeding flap assembly (36) comprises side support rods (361), a flip motor (365), a support base plate (366) and a flip base plate (367), wherein the side support rods (361) are fixedly connected to the short sides of the support base plate (366), and the flip base plate (367) is movably arranged above the support base plate (366), and the support base plate (366) is fixedly connected to the upper end of the electronic balance (39), and a flip shaft (368) is fixedly connected to one long side of the flip base plate (367), and one end of each of the two side support rods (361) is fixedly connected to the flip motor (365), and the flip motor (365) is fixedly connected to the two ends of the flip shaft (368) coaxially. The upper plate surface of the flip bottom plate (367) is fixedly connected to a material collecting bottom plate (362), the edge of the material collecting bottom plate (362) is connected to a material blocking frame (363), and a material discharge notch (364) is provided on one side of the material blocking frame (363), and the opening position of the material discharge notch (364) is close to the long side of the flip bottom plate (367) connected to the flip shaft (368).

7. The fully automatic process-based accurate measurement device for the gas generation of calcium carbide according to claim 1 is characterized by: The calcium carbide quantitative reaction assembly (4) further comprises a supporting box (44), the bottom ends of the gas generator (41) and the water-gas separator (42) are both fixedly connected in the supporting box (44), the box wall of the supporting box (44) is movably connected to a box cover (48), a slag collection box (414) is movably engaged in the box of the supporting box (44), a slag collection box (414) is horizontally connected in the slag collection box (414), a slag screen (415) is connected in the horizontal direction, a discharge pipe at the bottom end of the gas generator (41) is connected to a slag discharge solenoid valve (412), and a discharge pipe at the bottom end of the water-gas separator (42) is connected to a water discharge solenoid valve (413), so that the installation positions of the gas generator (41) and the water-gas separator (42) can be fixed by the supporting box (44), and the slag discharge solenoid valve (412) and the water discharge solenoid valve (413) can be opened and closed.

8. The fully automatic process-based accurate measurement device for the gas generation of calcium carbide according to claim 7 is characterized by: The feeding unit comprises a powder buffer tube (47), a feeding hopper (416), a cover plate (417), a connecting block (418), a connecting seat (419), an opening and closing motor (420), and a torque sensor (421); the tube body of the powder buffer tube (47) is fixedly connected to the upper opening of the gas generator (41); the feeding hopper (416) is connected to the upper end of the powder buffer tube (47); the cover plate (417) is movably connected to the bottom end of the powder buffer tube (47); and the edge of the cover plate (417) is fixedly connected to the upper end of the gas generator (41). A connecting block (418) is fixedly connected, a connecting seat (419) is fixedly connected to one side of the tube wall at the bottom end of the powder buffer tube (47), the connecting block (418) is rotatably connected to the connecting seat (419) via a rotating shaft, an opening and closing motor (420) and a torque sensor (421) are respectively connected to both sides of the connecting seat (419), and the opening and closing motor (420) and the torque sensor (421) are respectively coaxially fixedly connected to both ends of the rotating shaft docked between the connecting block (418) and the connecting seat (419); The gas pipeline unit comprises a gas output pipe (45), a gas delivery pipe (46) and a gas exhaust pipe (49); the gas output pipe (45) and the gas exhaust pipe (49) are horizontally connected to each other; the gas delivery pipe (46) is vertically connected to the connecting portion of the gas output pipe (45) and the gas exhaust pipe (49); the other end of the gas output pipe (45) is connected to the gas output end of the water-gas separator (42); and the other end of the gas delivery pipe (46) is connected to the gas generation volume measurement component (5). The other end of the gas discharge pipe (49) is connected to an external gas recovery pipeline; the electric ball valve unit comprises an output pipe electric ball valve (410), a delivery pipe electric ball valve (411) and a discharge pipe electric ball valve (422); the output pipe electric ball valve (410) is mounted on the pipe body of the gas output pipe (45), the delivery pipe electric ball valve (411) is mounted on the pipe body of the gas delivery pipe (46), and the discharge pipe electric ball valve (422) is mounted on the pipe body of the gas discharge pipe (49).

9. The fully automatic process-based accurate measurement device for the gas generation of calcium carbide according to claim 1 is characterized by: Support rods (53) are fixedly connected to the barrel walls of the outer barrel (51) of the gas emission measurement assembly (5), and the upper ends of the two support rods (53) are fixedly connected to support plates (54). The support plates (54) are located directly above the bell housing (52), and the laser displacement sensor (58) and the electric push rod (510) are both mounted on the support plates (54).

10. The fully automatic process-based accurate measurement device for calcium carbide gas generation according to claim 9 is characterized in that: The upper plate surface of the support plate (54) is fixedly connected to a balancing wheel (55), a pull rope (56) is wound around the wheel body of the balancing wheel (55), one end of the pull rope (56) passes through the support plate (54) and is fixedly connected to the bell housing (52), and the other end of the pull rope (56) is connected to a counterweight (57); The bottom end of the outer barrel (51) is connected to a liquid discharge pipe (511), and a liquid discharge valve (512) is installed on the body of the liquid discharge pipe (511).

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