Superfine powder and light material mixing machine device

Abstract

The utility model relates to a superfine powder and light material mixer device which is characterized in that the lower end of the side part of a mixing tank is communicated with one end of a chute, the other end of the chute is communicated with a material box, a plurality of openings are formed in the bottom of the mixing tank and are connected with corresponding control valves through pipelines, and the material box is used for loading mixed materials in the mixing tank; a dust collecting opening is formed in the material box cover and is connected with a corresponding control valve; an upper impeller, a lower impeller and a scraping plate which are arranged in the mixing tank are respectively driven by corresponding variable frequency motors; and the variable frequency motors are driven by a frequency converter. The mixing tank cover door device has the advantages that the mixing tank cover door device is provided with a plurality of openings which are used for feeding various mixing mesons into the mixing tank; the opening is provided with an opening and closing limit, so that an operator can manually and quantitatively put a binder for mixing materials into the mixing tank on the HMI; and the upper impeller and the lower impeller respectively adopt high-speed stirring and low-speed stirring, so that the mixture can be uniformly mixed within a short time.

Description

TECHNICAL FIELD

[0001] The utility model relates to refractory material production technical field especially relates to a super fine powder and light material mixing machine device. BACKGROUND

[0002] The existing refractory material industry material mixing technology generally uses ordinary powder mixing processing equipment, including various mixers and mixing machines for mixing processing of the materials needing to be mixed, with the requirement of long service life and erosion resistance of the refractory bricks in the refractory material industry, the ordinary powder mixed refractory bricks are difficult to meet the requirement of the steel industry on the refractory materials, the development of the light and super fine powder materials in the refractory material industry can solve the requirement of the steel industry on the long service life refractory bricks, but the existing equipment is difficult to meet the requirement of the uniform and efficient mixing of the super fine powder materials for producing high quality refractory bricks.

[0003] In the prior art, the patent with the patent announcement number CN211246283U and the patent name "a mixing and stirring device for refractory material production" points out that the patent provides a technical solution: a mixing and stirring device for refractory material production, including a mixing tank 1, a stirring shaft 2, a stirring blade 3, a scraper 4, a guide plate 5, a baffle 6, a support plate 7, a feeding hole 8, a fixed column 9, a feeding mechanism 10, a storage hopper 11 and a toothed disc 12, the upper end of the mixing tank 1 is rotatably installed with the stirring shaft 2, the outer side of the stirring shaft 2 is welded and fixed with the stirring blade 3, and the bottom end of the stirring shaft 2 is integrally provided with the scraper 4, the left side surface of the mixing tank 1 is provided with the guide plate 5 at the lower end, the inside of the guide plate 5 is installed with the baffle 6, the support plate 7 is fixed on the side wall of the mixing tank 1 by welding, the upper surface of the mixing tank 1 is provided with the feeding hole 8 at equal angles, the outer side of the feeding hole 8 is provided with the fixed column 9 fixed on the mixing tank 1, the outer side of the fixed column 9 is installed with the feeding mechanism 10 through the bearing, the outer side of the feeding mechanism 10 is provided with the toothed disc 12, the storage hopper 11 is located above the feeding mechanism 10, the feeding mechanism 10 includes a feeding box 1001, a charging cavity 1002, a rubber pad 1003 and a sealing plate 1004, the middle part of the feeding box 1001 is reserved with the charging cavity 1002, the upper and lower surfaces of the feeding box 1001 are both pasted and fixed with the rubber pad 1003, the outer side surface of the rubber pad 1003 is pasted and fixed with the sealing plate 1004", the mixing equipment of the patent has only one stirring blade driven by a motor, has no feeding port of additives, water and various auxiliary materials, and cannot carry out complex mixing of multiple materials and additives, and the mixing efficiency of the light and super fine powder materials is low. SUMMARY

[0004] The utility model aims at providing a super fine powder and light material mixing machine device, the mixing efficiency of the light super fine powder material is high, the mixed material is subjected to strong suspension stirring, and the dispersibility and uniformity are improved.

[0005] To achieve the above object, the utility model discloses the following technical scheme:

[0006] A kind of ultrafine powder and light material mixing machine device, including mixing tank, mixing tank is arranged on support, the side portion lower end of mixing tank is communicated with the one end of chute, the other end of chute is communicated with material box, the bottom of mixing tank is provided with discharge water port, discharge water port and the main raw material inlet, vice material inlet, binder inlet, washing water injection port, steam dust collection port, dust collection return port, air discharge filter and dust collection port, additive inlet, additive water injection port arranged on mixing tank cover are connected with corresponding control valve by pipeline, material box is used to load the material mixed in mixing tank, dust collection port is arranged on material box cover, and dust collection port is connected with corresponding control valve;

[0007] Mixing tank is provided with upper impeller, lower impeller and scraping plate, and the upper impeller, lower impeller and scraping plate are respectively driven by corresponding frequency conversion motor, and the frequency conversion motor is driven by frequency converter.

[0008] Chute is provided with discharge valve, and the discharge valve includes cylinder body, cylinder rod and push head, the cylinder body is fixed on the discharge valve shell, the cylinder rod is used to drive the push head to stretch out and retract, and the push head is rested on the mixing tank, so that the discharge valve is closed, and the mixed material in the mixing tank is not discharged;The push head is retracted, so that the discharge valve is opened, and the mixed material in the mixing tank can be discharged into the material box through the chute below the push head.

[0009] The main raw material inlet, vice material inlet, binder inlet, washing water injection port, additive inlet, additive water injection port are respectively connected with corresponding storage raw material bin through hose, and provide the required mixing raw materials and adjuvants for the mixing tank, the discharge water port is connected with external water treatment interface, the dust collection return port, air discharge filter and dust collection port, dust collection port are respectively connected with corresponding collection port, and are discharged after filtering and dedusting.

[0010] The side wall of chute is provided with vibrator, and soft connection is adopted between chute and material box.

[0011] The cylinder is arranged on the material box cover, the cylinder is used to drive the parallel four-bar mechanism to open or close the material box door, and the limit switch is arranged on the material box cover and is used to detect the signal that the material box door is closed in place.

[0012] The upper impeller is high-speed stirring blade, the lower impeller is low-speed stirring blade, the high-speed stirring blade and the low-speed stirring blade do not contact each other, the upper impeller is fixedly connected with the inner shaft of guide cylinder, and the lower impeller is fixedly connected with the outer shaft of guide cylinder, the upper impeller is used to accelerate material suspension, refinement, diffusion and increase material contact surface in the mixing tank, the lower impeller is used to stir the material around the bottom of mixing tank to participate in mixing, and the scraping plate is used to push back the light material and ultrafine powder material, which is suspended in the top of tank body and does not participate in material mixing, to material mixing.

[0013] The limit switches are arranged on the mixing tank cover plate and the control valve respectively, and are used for detecting the switch in-place signals.

[0014] The limit switch is arranged on the discharging valve, and is used for detecting the cylinder rod extension in-place signal.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The mixing tank cover door device is provided with a plurality of openings, which are used for putting various mixed elements into the mixing tank, wherein the two-position two-way electromagnetic valve SV is used for putting the main raw material and the auxiliary raw material into the feeding port, and the two feeding ports of the raw materials are also provided with electromagnetic valve opening and closing limit switches LS, which are used for detecting the valve switch in-place signal, so that the operator can manually operate the two-position two-way electromagnetic valve on the HMI man-machine interaction screen to realize the quantitative feeding of the main raw material and the auxiliary raw material, and the operation is simple and convenient for maintenance.

[0017] 2. The opening and closing limit LD of the binder feeding port is convenient for the operator to manually put the binder into the mixing tank on the HMI man-machine interaction screen, the water injection port is used for injecting washing water, the mixing environment in the mixing tank is ensured to meet the requirements, the two-position two-way electromagnetic water valve SV arranged at the additive injection port is convenient for the operator to manually operate to realize the quantitative injection of the additive into the mixing tank body on the HMI man-machine interaction screen, and the mixing process is ensured to be carried out.

[0018] 3. The total power of the high-speed stirring blade driving motor reducer, the low-speed stirring blade driving motor reducer and the top scraping plate driving motor reducer is nearly 300kW, frequency conversion motor and frequency converter are adopted to drive, the starting, intermediate and ending rotating speeds are set through the frequency converter, the speed suitable for throwing the mixed material is realized, the material is accelerated to be suspended, refined, diffused and expanded, the mixing of different materials is facilitated, the mixing speed is fast, the mixing time is saved, the mixing is uniform, the mixing efficiency is improved, and the energy consumption is reduced.

[0019] 4. The mixing material discharging valve opening and closing limit, the discharging valve cover plate closing limit and the discharging valve seat plate closing limit are used for detecting the discharging valve state information, and the safe operation of the discharging process is ensured.

[0020] 5. The gas source of the cylinder comes from the gas storage tank, the stability of the gas source is ensured, a pipeline pressure sensor is arranged for detecting the pressure state signal, an alarm signal is sent when the pipeline pressure exceeds the set range, and a silencer is arranged at the exhaust port of each electromagnetic valve in the gas circuit, so that the personal safety of the staff is ensured.

[0021] 6. The upper and lower impellers are used for high-speed stirring and low-speed stirring respectively, the rotation directions of high-speed stirring and low-speed stirring are opposite, the materials in the mixing tank are thrown up, collided and rolled, the mixing materials can be uniformly mixed in a short time, the mixing effect is good, and the desired granulation effect can be achieved under certain conditions;

[0022] 7. The ultra-fine powder suspended in the top of the mixing tank and not participating in the material mixing can be scraped by the scraper, the top suspended material is returned to the material mixing by the paddle of the upper scraper, and the mixing efficiency and uniformity are improved;

[0023] 8. An air shaker is arranged at the bottom of the discharge valve chute for assisting in discharging materials, preventing the discharge chute from being blocked and piled up, and a cylinder is arranged at the bottom of the discharge chute for driving a parallel four-bar linkage mechanism to open or close the material box door, and the structure is simple and easy to realize. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a process structure schematic diagram of the ultra-fine powder and light material mixing machine.

[0025] Figure 2 is a working process schematic diagram of the ultra-fine powder and light material mixing machine.

[0026] In the figure: 1 - pot closed limit position LS2 - cover closed limit position LS 3 - main raw material feeding port two-position two-way solenoid valve SV 4 - secondary material feeding port 5 - main raw material feeding port 6 - frequency conversion motor reducer of scraping device 7 - additive feeding port 8 - binder feeding port 9 - binder feeding port electromagnetic pneumatic butterfly valve 10 - washing water injection port 11 - air discharge filter and dust collection port 12 - air discharge filter and dust collection port two-position two-way solenoid valve SV 13 - non-contact proximity switch 14 - steam dust collection port 15 - steam dust collection port electromagnetic pneumatic butterfly valve 16 - dust collection return port 17 - additional water injection port 18 - additional water injection port two-position two-way electromagnetic water valve 19 - mixed tank upper water inlet and outlet pipe 20 - mixed tank upper water inlet and outlet pipe two-position two-way electromagnetic water valve 21 - thermocouple TIC 22 - discharge valve cover plate closed limit position LS 23 - discharge valve seat plate closed limit position LS 24 - discharge valve closed limit position LD 25 - discharge valve open limit position LD 26 - two-position four-way solenoid valve 27 - dust collection port 28 - dust collection port electromagnetic pneumatic butterfly valve 29 - material box 30 - material discharge valve and material box soft connection 31 - four-link mechanism driving cylinder of material box opening and closing door 32 - air vibrator 33 - pressure switch 34 - air source treatment element (filtering pressure reducing valve) 35 - upper impeller driving frequency conversion motor reducer 36 - lower impeller driving frequency conversion motor reducer 37 - scraping plate 38 - upper impeller and screw (or propeller) type flow guide cylinder 39 - lower impeller stirring paddle 40 - mixed tank lower water outlet 41 - mixed tank lower water outlet battery water valve 42 - lower impeller rotation detection switch 43 - upper impeller rotation detection switch 44 - check door closed limit position LS 50 - cylinder body of cylinder 51 - cylinder lever 52 - push head 60 - upper impeller driving pulley 61 - lower impeller driving pulley. DETAILED DESCRIPTION

[0027] The utility model will be described in detail below in combination with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

[0028] The following examples are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are all conventional methods unless otherwise specified.

[0029] [Example 1]

[0030] See Figure 1A kind of superfine powder and light material mixing machine device, including split trapezoidal arc mixing tank cover closed limit switch LS1, upper impeller drive variable frequency motor speed reducer 35, upper impeller and screw (or propeller) guide vane 38, lower impeller drive variable frequency motor speed reducer 36, scraping variable frequency motor speed reducer 6, mixing material discharge valve opening and closing limit LD 2425, discharge valve cover plate closed limit LS22, discharge valve seat plate closed limit LS23, tank thermocouple TIC 21, pneumatic system, guide vane is vertically rotatably installed with outer shaft and inner shaft in outer shaft in the upper end, outer shaft and inner shaft pass through the bottom of mixing tank, upper impeller and the inner shaft of guide vane lower end are fixedly connected, lower impeller and the outer shaft of guide vane are fixedly connected, material box cover door device is provided with main raw material inlet 5 controlled by two-position two-way electromagnetic valve SV 3 of main raw material inlet two-way electromagnetic valve SV 3 and vice raw material inlet 4, the two raw material inlets are all provided with electromagnetic valve opening and closing limit switch LS to confirm its opening and closing, binder inlet 8 and binder inlet electromagnetic pneumatic butterfly valve 9 (are provided with swivel joint), wash water injection port 10, two-position two-way electromagnetic water valve SV 15 controlled additive injection port 7, air discharge filter and dust collection port 11, this dust collection discharge port is realized by electromagnetic valve SV 12 to be on-off, steam dust collection port 14 opening and closing are confirmed by limit switch LS15, additive water injection port 17 is realized by electromagnetic water valve SV 18 to be on-off, two-position two-way electromagnetic water valve SV 20 is arranged on the upper portion of mixing tank, to realize the on-off of water inlet and outlet pipe 19 in the upper portion of mixing tank, the lower portion of mixing tank is realized by two-position two-way electromagnetic water valve SV 41 to be on-off of water outlet 40 in the lower portion of mixing tank.

[0031] The mixed tank cover opening and closing limit switch LS1 is used to confirm the tank closed state, and the cover opening and closing limit switch LS2 is used to confirm the cover closed state, which are one of the necessary conditions for the mixed tank groove to start mixing materials. The upper impeller drive variable frequency motor reducer 35 is driven by the upper impeller driving pulley 60 to drive the high-speed upper impeller and the screw (or propeller) type flow guide cylinder 38 to rotate, wherein the upper impeller rotation detection switch 43 is arranged to detect whether the upper impeller rotates. The upper impeller can select the starting rotation, intermediate and ending speed according to the characteristics of the mixed materials, and set the shear speed of the mixed materials thrown up. The mixing parameters can accelerate the suspension, refinement, dispersion and increase the contact area of the materials, which is beneficial to mixing different materials. The lower impeller drive variable frequency motor reducer 36 is driven by the lower impeller driving pulley 61 to drive the lower impeller stirring paddle 39, which stirs the materials at the bottom of the mixed tank to participate in the mixing process. The process can set the starting rotation speed, intermediate and ending speed according to the characteristics of the mixed materials. The upper scraping device variable frequency motor reducer 6 pushes the light materials and ultrafine powder materials suspended in the top of the tank body and not participating in the material mixing back to the material mixing through the scraping plate 37, which improves the mixing efficiency and uniformity. The rotation speed of the scraping plate 37 depends on the particle size, bulk density and other properties of the materials. The operator manually sets the rotation speed of the scraping paddle through the HMI human-computer interaction screen, which is simple to operate and easy to maintain. The mixed material discharge valve opening and closing limit LD 24, 25, the discharge valve cover plate closing limit LS22 and the discharge valve seat plate closing limit LS23 are the limiting signals of the discharge valve part, which facilitate the operator to observe the condition of the mixed materials discharged from the mixed tank into the bin 29 at any time. The air shaker 32 at the bottom of the discharge device chute is used to help the smooth discharge of the materials and prevent the fine powder materials from swelling and blocking.

[0032] The gas source part of the pneumatic system includes a gas source treatment element (filtering pressure reducing valve) 34, a pipeline pressure monitoring pressure switch 33, and a gas cylinder for supplying each pneumatic actuator, each reversing and opening and closing control valve. The pipeline pressure monitoring switch 33 will send an alarm signal when the set pressure is exceeded.

[0033] The material box cover door device is provided with a two-position two-way electromagnetic valve SV 3 for opening and closing the main raw material feeding port 5 and the auxiliary raw material feeding port 4. Both the feeding ports are provided with electromagnetic valve opening and closing limit switches LS to confirm the opening and closing state, and according to the mixing process requirements, the operator manually quantitatively feeds the main raw material and the auxiliary raw material into the mixing tank through the HMI human-computer interaction screen. The adhesive feeding port 8 adopts an electromagnetic pneumatic butterfly valve SV 9 (provided with a rotary joint) to quantitatively feed the adhesive for mixing materials into the mixing tank. The washing water injection port 10 is injected with washing water by the operator through the HMI human-computer interaction screen according to the process requirements, so as to ensure that the mixing environment in the tank meets the requirements. The additive injection port 7 is realized by a two-position two-way electromagnetic water valve SV 15, and the operator quantitatively injects the additive into the tank through the HMI human-computer interaction screen to ensure that the mixing process is carried out.

[0034] The two-position two-way electromagnetic valve SV 12 realizes the opening and closing of the air discharge filter and the dust collection port 11. The dust collection discharge port is opened and closed by the electromagnetic valve according to the requirements of the mixing process, and the opening and closing state is confirmed by the limit switch LS carried by the valve itself. The filtered exhaust gas meets the emission standard, and a manually controlled stop valve is also arranged on the exhaust pipeline for use when processing, repairing and replacing the electric valve. The steam dust collection port 14 controlled by the two-position two-way electromagnetic valve SV 15 is opened and closed by the limit switch LS of the valve according to the needs of the process production. The steam dust collection port pipeline is also provided with an emission filter meeting the environmental protection standard.

[0035] The mixing tank cover is provided with an additive water injection port 17, which is realized by a two-position two-way electromagnetic water valve SV 18 according to the needs of the mixing process. The two-position two-way electromagnetic water valve SV 20 arranged on the upper part of the mixing tank realizes the opening and closing of the water inlet and outlet pipe 19 of the upper part of the mixing tank. The two-position two-way electromagnetic water valve SV 41 arranged on the lower part of the mixing tank realizes the opening and closing of the water outlet 40 of the lower part of the mixing tank, which is used to add water or discharge water according to the needs of the mixing process.

[0036] Working process:

[0037] See Figure 2, mixing tank cover closed 2, discharge valve closed 24, discharge valve cover plate closed 22, discharge valve seat plate closed 23, compressed air pass is the basic necessary signal for the mixing machine to start to put the mixed material and various auxiliary materials into the mixing tank. The basic necessary signal for the mixing tank to start mixing is that the main raw material feeding port 5, the auxiliary raw material feeding port 4 and the binder feeding port 8 are all set to "pass" signal, and the working conditions of these main raw material feeding ports are set to "complete" with "delay 0-999s", which can flexibly respond to the feeding process and feeding amount of different materials, make the mixing machine more flexible to adapt to the feeding requirements of different mixing processes, and make the whole material mixing effect better. The basic necessary signal for the mixing tank to start mixing also includes each cooling water pipe (the mixing tank cover is provided with a two-position two-way electromagnetic water valve SV18 to control the water injection port 17, the mixing tank upper part is provided with a two-position two-way electromagnetic water valve SV20 to control the water inlet and outlet pipe 19, and the mixing tank lower part is also provided with a two-position two-way electromagnetic water valve SV41 to control the water outlet 40, and the feeding and closing of these cooling water are controlled by the measured temperature of the tank thermocouple TIC B 21), and the dust collection port 14, the dust collection return port 16, the air discharge filter dust collection port 11, the additive injection port 7 are all set to "pass" and "no" as the feeding condition signal, to ensure the input of these functions during mixing and the controllability of the mixing process. After the mixing tank starts to meet various auxiliary conditions, the high-speed stirring device, the low-speed stirring device and the scraping device start to mix the material, which is the main mixing drive part of the mixing machine. The whole mixing process is controlled according to the characteristics of each mixed material, such as material particle size, material bulk density, mixing temperature and mixing medium feeding time. When the discharge valve device is confirmed to be in a stopped state, the tank cover is in a closed state, and the dust collection port valve 28 is in an open state, the discharge valve device has the condition of opening the discharge valve, and starts to discharge the mixed material into the tank. In order to ensure the smooth operation of the discharge, an air shaker 32 is arranged at the bottom of the discharge valve chute to assist the discharge. A two-position four-way electromagnetic valve 26 and a pneumatic cylinder 31 are arranged at the bottom of the discharge chute to drive a parallel four-bar linkage mechanism to control the opening and closing door device, which is used to open and close the tank connected with the discharge chute by soft connection. The tank 29 is connected with the discharge device by soft connection 30.

[0038] The utility model discloses a mixed tank cover door device sets up numerous openings for putting various mixed mesons into the mixed tank, wherein two position two way electromagnetic valve SV is used for putting the main raw material and the auxiliary raw material into the inlet, and the two raw material inlets are also provided with electromagnetic valve opening and closing limit switch LS for detecting the valve switch in place signal, which is convenient for the operator to manually operate two position two way electromagnetic valve on HMI man-machine interaction screen to realize the quantitative feeding of the main raw material and the auxiliary raw material, and the operation is simple and convenient for maintenance, and the opening and closing limit of the binder inlet LD (a rotary joint is arranged) is convenient for the operator to manually put the binder into the mixed tank on HMI man-machine interaction screen for quantitative feeding of the mixed material, the washing water injection inlet is used for injecting washing water to ensure that the mixing environment in the mixed tank meets the requirements, the two position two way electromagnetic water valve SV arranged at the additive injection inlet is convenient for the operator to manually operate to realize the quantitative injection of additives into the mixed tank body on HMI man-machine interaction screen, and the mixing process is ensured, the power of the driving motor reducer of high speed stirring blade, the power of the driving motor reducer of low speed stirring blade and the power of the driving motor reducer of the top scraping plate sum up to nearly 300kW, frequency conversion motor and frequency converter are adopted to drive, the starting, intermediate and ending rotating speeds are set through the frequency converter, the speed suitable for throwing the mixed material is realized, the material is accelerated to suspend, refine, diffuse and spread, which is beneficial to mixing different materials, the mixing speed is fast, the mixing time is saved, the mixing is uniform, the mixing efficiency is improved, and the energy consumption is reduced, the opening and closing limit of the mixing material discharge valve, the closed limit of the discharge valve cover plate and the closed limit of the discharge valve seat plate are used for detecting the discharge valve state information to ensure the safe operation of the discharge process, the air cylinder gas source comes from the gas storage tank, the stable gas source is ensured, and the pipeline pressure sensor is arranged for detecting the pressure state signal to ensure that an alarm signal is sent when the pipeline pressure exceeds the set range, the silencer is arranged at the exhaust port of each electromagnetic valve in the air path to ensure the personal safety of the staff, the upper impeller and the lower impeller adopt high speed stirring and low speed stirring respectively, the rotating directions of high speed stirring and low speed stirring are opposite, the material in the mixed tank is thrown, collides and rolls, the mixed material can be uniformly mixed in a short time, the mixing effect is good, and the dream granulation effect can also be realized under certain conditions, the scraping plate is adopted to make the ultrafine powder, which is suspended in the top of the mixed tank body and does not participate in the material mixing, thrown by high speed, the paddle of the upper scraping plate makes the top suspended material return to the material mixing, and the mixing efficiency and the uniformity of mixing are improved, the air shaker is arranged at the bottom of the discharge valve chute for assisting the discharge, preventing the discharge chute from being blocked and stacking, and the cylinder arranged at the bottom of the discharge chute is used for driving the parallel four bar mechanism to make the tank door open or close, and the structure is simple and easy to realize.

Claims

1. An ultrafine powder and light material mixing device, characterized by comprising: The chute is connected with one end of the mixing tank, and the other end of the chute is connected with the material box. The mixing tank is provided with an upper impeller, a lower impeller and a scraping plate.

2. A device for mixing ultrafine powder and light material according to claim 1, wherein The chute is provided with a discharge valve.

3. A device for mixing ultrafine powder and light material according to claim 1, wherein The main raw material inlet, the auxiliary material inlet, the binder inlet, the washing water inlet, the additive inlet and the additive water inlet are respectively connected with corresponding storage raw material bins through hoses, and provide the mixing tank with required mixing raw materials and additives.

4. A device for mixing ultrafine powder and light material according to claim 2, wherein The chute is provided with a vibrator.

5. A device for mixing ultrafine powder and light material according to claim 4, wherein The material box cover is provided with a cylinder.

6. A device for mixing ultrafine powder and light material according to claim 1, wherein The upper impeller is a high-speed stirring blade, and the lower impeller is a low-speed stirring blade.

7. A device for mixing ultrafine powder and light material according to claim 1, wherein The mixing tank cover plate and the control valve are respectively provided with limit switches for detecting the on-off signal.

8. A device for mixing ultrafine powder and light material according to claim 2, wherein The discharge valve is provided with a limit switch for detecting the extension and retraction signal of the cylinder rod.

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