CN108816454A - A kind of efficiently quick crushing system - Google Patents

Abstract

The invention discloses a high-efficiency and fast crushing system, which comprises a gas processing device, a material crushing device, and a circulation device. The gas processing device includes: a gas source, a compressor, a gas storage tank, an oil remover, a freeze dryer, Filtration device, the material crushing device includes: a pulverizer, a cyclone separator, a pulse dust collector and a dust collector, and the circulation device includes: an air extractor, an exhaust valve, a gas concentration detection device, and a one-way air valve. The gas treatment device is connected to the jet flow nozzle on the pulverizer of the material crushing device, one end of the circulation device is connected to the dust collector in the material crushing device, and the other end is connected to the air inlet of the compressor in the gas processing device. The invention discloses a The efficient and fast crushing system can improve the crushing effect of materials, improve the crushing efficiency, reduce the consumption of gas, and then reduce the production cost of the enterprise and improve the safety of the crushing system.

Description

An efficient and fast crushing system

technical field

The invention belongs to a jet crushing device, in particular to an efficient and fast crushing system.

Background technique

The crushing mechanism mainly applicable to the jet mill determines its wide application range and high fineness of the finished product. Typical materials include: superhard diamond, silicon carbide, metal powder, etc. High-purity requirements: ceramic pigments, medicine, Biochemical, etc., low temperature requirements: medicine, PVC. By changing the normal air in the gas source part to inert gases such as nitrogen and carbon dioxide, the machine can be used as an inert gas protection equipment, suitable for crushing and classifying processing of flammable, explosive, and oxidizable materials.

The crushing effect of the existing jet milling and other methods is not ideal, and the crushing efficiency is low. When jet milling, some materials will accumulate at the bottom of the jet mill, causing the pulverization effect to be unsatisfactory, especially the flat jet mill pulverizer. The crushing chamber is sheared by the high-speed airflow, and the strong impact and friction make the material crushed into ultra-fine products, and the existing airflow crushing does not recover the inert gas, resulting in waste of resources and increased production costs.

Contents of the invention

Purpose of the invention: the purpose of the present invention is to solve the deficiencies in the prior art and provide a high-efficiency and rapid pulverization system, comprising a gas treatment device, a material pulverization device, and a circulation device. The gas treatment device includes: a gas source, a compression Machine, gas storage tank, degreaser, freeze dryer, filter device, the gas outlet of the gas source is connected to the air inlet of the compressor through a solenoid valve, a one-way gas valve and a three-way elbow in turn, and the compressor The output end of the machine is connected with the intake end of the storage tank, the gas outlet end of the storage tank is connected with the intake end of the degreaser, the output end of the degreaser is connected with the intake end of the freeze dryer, and the The air outlet of the freeze dryer is connected to the air inlet of the filter device, and the air outlet of the filter device is connected to the air inlet of the material crushing device;

The material crushing device includes: a pulverizer, a cyclone separator, a pulse dust collector and a dust collector. The internal cavity of the pulverizer is cylindrical, and several flow nozzles are arranged on the wall of the pulverizer, and the flow nozzles and the pulverizer The inner wall forms an included angle of 20-60 degrees, the flow nozzle and the horizontal line of the pulverizer form an included angle of 5-45 degrees, the flow nozzle is connected to the annular pipe, and the annular pipe is connected to the output end of the filter device, so The center bottom of the pulverizer is provided with crushing blades, and the pulverizing blades are driven by a motor outside the pulverizer, and the discharge end of the pulverizer is connected with the feed end of the cyclone separator through a pipeline, and the cyclone separator The discharge end is connected to the feed end of the pulse dust collector through a pipeline, and the exhaust end of the pulse dust collector is connected to the dust collector through a pipeline;

The circulation device includes: an air extractor, an exhaust valve, a gas concentration detection device, and a one-way air valve. The three-way elbow is connected to the gas concentration detection device, and the other end of the three-way elbow is connected to the exhaust valve, and the exhaust valve is connected to the one-way air valve. The valve is connected to the tee elbow on the gas treatment unit to complete the circuit.

Further, the air extractor, the exhaust valve, the gas concentration detection device, and the one-way gas valve in the circulation device are connected through an air pipeline, and the air pipeline is provided with a plurality of pressure reducing valves and valves.

Further, the gas concentration detection device and the exhaust valve in the circulation device are connected to a control system, the exhaust valve is an electronically controlled exhaust valve, and the control system is controlled by a PLC or a single-chip microcomputer.

Further, the outlets at the lower ends of the cyclone separator and the pulse dust collector are both equipped with a barrel.

Further, the feed holes on the pulverizer are connected by a material transmission mechanism, and no air enters when the material transmission mechanism transmits materials.

Further, an air valve is also provided on the connecting pipeline between the pulse dust collector and the exhaust fan.

Further, the filter device is equipped with a precision filter and a sterilizing filter.

Beneficial effects: the present invention discloses a high-efficiency and fast crushing system. In summary, the whole system is crushed in a closed space with less dust and low noise. The production process is clean and environmentally friendly. The flow nozzle is connected with the annular pipe to ensure The stability of the air flow in the flow nozzle, the angle between the flow nozzle and the pulverizer is 20-60 degrees, which can form a whirlwind in the pulverizer to accelerate and improve the pulverization performance of the material, and through the pulverization blade at the lower end, some of the materials that cannot be pulverized can be crushed. Or the materials accumulated at the lower end of the gas pulverizer are pulverized, and the pulverized materials will be further pulverized by the airflow, which not only improves the pulverization effect, but also improves the pulverization efficiency. During the pulverization process, all the low-temperature nitrogen gas is used to effectively prevent the material from The high temperature generated during crushing affects the deterioration of the material, and at the same time effectively prevents the explosion hazard caused by the high temperature in the crushing process of the material. The consumption of the gas used for the gas source is realized through the circulation device, which saves the consumption of gas and reduces the cost. At the same time, it also realizes the production. The problem of dynamically controlling the concentration of gas prevents the air from entering to cause explosions and ensures the safety of the airflow crushing system. The invention discloses an efficient and fast crushing system, which not only improves the crushing effect, but also improves the crushing efficiency and reduces the participation of crushing gas. It also improves the security of the overall system.

Description of drawings

Fig. 1 is a system diagram of the invention;

Fig. 2 is the structural diagram of the material crushing device of the invention;

Fig. 3 is the top view of the inventive material crushing device;

Fig. 4 is a partial sectional view of the pulverizer in the material pulverizing device of the invention;

1. Gas processing device; 2. Material crushing device 21, pulverizer 22, cyclone separator 23, pulse dust collector 24, barrel 25, dust collector 26, annular pipe 211, motor 212, crushing blade 213, flow nozzle; 3 , Circulation device.

Detailed ways

As shown in Figure 1-4, an efficient and fast crushing system consists of a gas processing device 1, a material crushing device 2, and a circulation device 3. The gas processing device 1 includes: a gas source, a compressor, a gas storage tank, Degreaser, freeze dryer, filter device, the outlet end of the air source is connected to the air inlet of the compressor through a solenoid valve, a one-way air valve and a three-way elbow in turn, and the output end of the compressor is connected to the storage The inlet end of the feed tank is connected, the outlet end of the storage tank is connected with the inlet end of the degreaser, the output end of the degreaser is connected with the inlet end of the freeze dryer, and the outlet end of the freeze dryer is It is connected to the inlet end of the filter device, and the gas outlet end of the filter device is connected to the inlet end of the material crushing device 2;

The material pulverizing device 2 includes: a pulverizer 21, a cyclone separator 22, a pulse dust remover 23 and a dust collector 25. The inner cavity of the pulverizer 21 is cylindrical, and the wall of the pulverizer 21 is provided with several flow channels. Nozzle 213, the flow nozzle 213 forms an angle of 20-60 degrees with the inner wall of the pulverizer 21, the flow nozzle 213 forms an angle of 5-45 degrees with the horizontal line of the pulverizer 21, and the flow nozzle 213 is connected with the annular pipe 26, The annular pipe 26 is connected to the output end of the filter device, and the center bottom of the pulverizer 21 is provided with a pulverizing blade 212, and the pulverizing blade is driven by a motor 211 outside the pulverizer 21, and the output of the pulverizer 21 is The end is connected to the feed end of the cyclone separator 22 through a pipeline, the discharge end of the cyclone separator 22 is connected to the feed end of the pulse dust collector 23 through a pipeline, and the exhaust end of the pulse dust collector 23 is passed through Pipeline links to each other with deduster 25,

The circulation device 3 includes: an air extractor, an exhaust valve, a gas concentration detection device, and a one-way air valve. The other end of the three-way elbow is connected with the gas concentration detection device, and the other end of the three-way elbow is connected with the exhaust valve, and the exhaust valve is connected with the one-way air valve. The gas valve is connected with the three-way elbow on the gas treatment device 1 to form a complete circuit.

The air extractor in the circulation device 3, the exhaust valve, the gas concentration detection device, and the one-way gas valve are connected through an air pipeline, and the air pipeline is provided with a plurality of pressure reducing valves and valves. The gas concentration detection device and the exhaust valve in the circulation device 3 are connected to the control system, the exhaust valve is an electronically controlled exhaust valve, the control system is controlled by PLC or single-chip microcomputer, the cyclone separator 22 and the pulse dust collector 23 The discharge port at the lower end is provided with a barrel 24, and the feed hole on the pulverizer 21 is connected by a material transmission mechanism, and no air enters when the material transmission mechanism transports the material, and the pulse dust collector 23 is connected with the suction fan An air valve is also provided on the connecting pipeline, and a precision filter and a sterilizing filter are installed in the filter device. The directions of the crushing blades 212 are located at the lower end of the gas jet area, and the crushing blades 212 are composed of a plurality of crushing blades.

When in use, the material device is connected to the pulverizer in the system. The material device and the whole system are a closed space. First, the whole system is operated to empty the air in the system. When the standard is reached, the electromagnetic valve in the gas processing device 1 is closed by the control system. Taking nitrogen as the gas source as an example, the nitrogen flows into the compressor through the one-way valve, and the compressor compresses the gas into the gas storage tank. The compressed nitrogen passes through the degreaser, the freeze dryer, and the filtering device in order to pass the low-temperature nitrogen into the airflow mill 21, and the airflow in the airflow mill 21 is formed into a high-speed rotating wind through the flow nozzle 213, and the crushing blade 212 at the bottom Driven by the motor 211 to rotate at a high speed, the incoming materials are crushed by the airflow first, and the larger materials that have not been crushed will fall to the area of the crushing blade 212 due to the action of gravity for crushing, and the crushed materials will be crushed due to the influence of the rotating wind. The final lighter material is drawn into the upper end for further crushing, and the crushed material that reaches the standard is affected by the air pump, and the material that reaches the standard is extracted to the cyclone separator 22 for separation, and the larger particles that meet the standard are separated. The material sinks, and the smaller materials and nitrogen are extracted to the pulse dust collector 23, and the smaller materials are collected in the lower cavity of the pulse dust collector 23, and the exhaust fan continues to work, and the gas in the pulse dust collector 23 is pumped out. In the dust remover 25, further dust removal is carried out, and the exhaust fan supplies nitrogen to the gas concentration detection device, and the gas concentration detection device is a nitrogen gas detector, and the data detected by the nitrogen gas detector is fed back to the control system and carried out. In contrast, when the concentration is lower than the set concentration, the exhaust valve is controlled by the control system to discharge the nitrogen with insufficient concentration, and at the same time, the electromagnetic valve in the gas treatment device 1 is opened to further transport nitrogen, when the circulation device 3 When the gas concentration detection device detects that the concentration reaches the standard, it is closed again. When the concentration reaches the standard, it is directly fed to the inlet end of the compressor in the gas processing device 1 through the one-way air valve for further circulation.

To sum up, the materials of the whole system are crushed in a closed space, with less dust, low noise, and the production process is clean and environmentally friendly. There is a certain included angle, which can form a cyclone in the pulverizer to accelerate and improve the pulverization performance of the material, and through the pulverizing blade at the lower end, some materials that have not been pulverized or accumulated at the lower end of the gas pulverizer are pulverized, and the crushed material It will be further pulverized by the airflow, which not only improves the pulverization effect, but also improves the pulverization efficiency. During the pulverization process, all low-temperature nitrogen gas is introduced, which can effectively prevent the high temperature generated by the material during pulverization from affecting the deterioration of the material, and at the same time effectively prevent The danger of explosion caused by high temperature in the material crushing process, the consumption of gas used in the gas source is realized through the circulation device, which saves the consumption of gas and reduces the cost. At the same time, it also realizes the brake to control the concentration of the gas, prevent the air from entering and cause explosion, and ensure the airflow crushing system security.

The above descriptions are preferred embodiments of the present invention, and should not be used to limit the scope of rights of the present invention. It should be pointed out that for those skilled in the art, modifications or equivalent replacements to the technical solutions of the present invention will not depart from the protection scope of the present invention.

Claims (7)

1. a kind of efficiently quick crushing system, it is characterised in that：Including gas treatment equipment, material-pulverizing device, circulation dress Composition is set, the gas treatment equipment includes：Gas source, compressor, air accumulator, oil expeller, freeze drier, filter device, institute The outlet side for stating gas source passes sequentially through solenoid valve, Non-return air valve and three-way elbow and is connected with the air inlet of compressor, the compression The output end of machine is connected with the inlet end of storage tank, and the outlet side of storage tank is connected with the inlet end of oil expeller, the oil expeller Output end be connected with the inlet end of freeze drier, the outlet side of the freeze drier and the inlet end phase of filter device Even, the outlet side of the filter device is connect with material-pulverizing device inlet end；

The material-pulverizing device includes：Pulverizer, cyclone separator, pulse dust collector and deduster, in the pulverizer Portion's air-flow crushing chamber is cylinder, and the machine wall of pulverizer is equipped with several flow nozzles, and the inner wall of flow nozzle and pulverizer is at 20- At the angle of 5-45 degree, the flow nozzle is connected the horizontal line of 60 degree of angle, flow nozzle and pulverizer with ring pipe, the ring Shape pipe is connected with the output end of filter for installation, and the centre bottom of the pulverizer is equipped with crushing vane, and the crushing vane is logical The motor driving outside pulverizer is crossed, the discharge end of the pulverizer is connected by pipeline with the feed end of cyclone separator, institute The discharge end for stating cyclone separator is connected by pipeline with the feed end of pulse dust collector, and the air outlet of the pulse dust collector is logical Pipeline is crossed to be connected with deduster；

The circulator includes：Air exhauster, exhaust valve, gas concentration detection apparatus, Non-return air valve, the air inlet of the air exhauster End is connected with the outlet side of deduster, and the outlet side of the air exhauster is connected with threeway bend pipe, and the threeway bend pipe and gas are dense Detection device is spent, the other end of the threeway bend pipe is connected with exhaust valve, and the exhaust valve is connected with Non-return air valve, described unidirectional Air valve is connected with the threeway bend pipe on gas treatment equipment, forms complete circuit.

2. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：Pumping in the circulator Mechanism of qi, exhaust valve are connected between gas concentration detection apparatus, Non-return air valve by gas path pipe, and the gas path pipe is equipped with Multiple pressure reducing valves and valve.

3. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：Gas in the circulator Concentration detection apparatus, exhaust valve are connected with control system, the exhaust valve be electric control exhaust valve, the control system be PLC or Single-chip microcontroller control.

4. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：The cyclone separator and arteries and veins The discharge port for rushing deduster lower end is equipped with barrel.

5. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：Charging on the pulverizer Hole is connected by materials transport mechanism, does not have air entrance when the materials transport mechanism is by material transferring.

6. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：The pulse dust collector and pumping Air valve is additionally provided on the connecting line of blower.

7. a kind of efficiently quick crushing system according to claim 1, it is characterised in that：It is equipped in the filter device Accurate filter and sterilizing filter.