Polyurethane-lined double-cone mixer for preparing aluminum oxide ceramic powder

Abstract

The utility model belongs to the field of aluminum oxide ceramic powder production, and particularly relates to a polyurethane lining double-cone mixer for preparing aluminum oxide ceramic powder, which is characterized in that a feed port and a discharge port are arranged at two ends of a double-cone mixing tank, and a polyurethane lining isolating layer is arranged on the inner wall of the tank body; a left support and a right support are arranged above the supporting base, a left rotating shaft and a right rotating shaft are arranged on the two sides of the tank body, and the mixing tank body is rotationally erected between the two supports. A liquid auxiliary material storage tank is arranged on the outer side of the right support, a feeding hopper and a discharging pump are arranged on a top cover of the storage tank, the discharging end of the pump is connected with a feeding pipe, a material spraying pipe and a spraying head are arranged in the material mixing tank, a material supply pipe is coaxially arranged in the right rotating shaft, one end of the material supply pipe is connected with the material spraying pipe, and the other end of the material supply pipe is connected with the spraying head. And the other end is rotationally connected with the feeding pipe through a rotary joint. The mixing machine can adapt to mixing operation of powder materials and liquid auxiliary materials, and meanwhile, the problem that aluminum oxide powder is doped into stainless steel components due to abrasion of the inner wall of the stainless steel tank body is solved.

Description

Technical Field

[0001] The utility model belongs to the field of alumina ceramic powder production, in particular to a polyurethane lined double cone mixer for alumina ceramic powder production. Background Art

[0002] Alumina, also known as corundum, is a high-hardness compound that can be generated into ionic crystals at high temperatures. It is often used in the production of refractory materials, ceramics, aluminum smelting, and other fields. As an excellent ceramic material, high-purity alumina ceramics have excellent performance in electrical insulation, high thermal conductivity, high chemical resistance, high wear resistance, and low thermal expansion. As the main production material of alumina ceramics, alumina ceramic powder needs to be fully mixed with the alumina powder raw materials and additives and auxiliary materials using a mixer during the production process. However, additives and auxiliary materials are also divided into two forms: powder and liquid. The existing mixer is more suitable for mixing powder materials, but the mixing effect between liquid auxiliary materials and alumina powder is not ideal; in addition, the inner wall of the existing mixer container is mostly made of stainless steel, and the purity requirements of alumina ceramic powder are relatively high. However, during the mixing process of alumina materials, there will inevitably be countless frictions between the inner wall of the mixer, and it is inevitable that a certain amount of stainless steel components will be mixed into the alumina powder material due to the wear of the inner wall of the mixer, thereby affecting the purity of the alumina ceramic powder, and it is difficult to meet the production requirements of high-purity alumina ceramics. Utility Model Content

[0003] In view of the above situation, the utility model provides a polyurethane lined double-cone mixer made of alumina ceramic powder, which can better adapt to the mixing operation between alumina powder materials and liquid auxiliary materials, and also solves the problem of stainless steel components being mixed into the alumina powder materials due to wear of the inner wall of the mixer during the mixing process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A polyurethane lined double cone mixer made of alumina ceramic powder comprises a supporting base and a mixing tank body which is flipably mounted above the supporting base.

[0006] The mixing tank body is a double-cone mixing tank with a cylindrical middle section and conical ends. A feed port and a discharge port are respectively provided at both ends of the mixing tank body. A feed end cover is detachably provided on the feed port. Preferably, an observation port is also provided on the feed end cover, and a flange blind plate is detachably connected to the observation port through a quick-release clamp. A discharge valve is provided on the discharge port. Preferably, the discharge valve is a manual butterfly valve. The inner wall surface of the mixing tank body is covered with a polyurethane lining isolation layer to isolate the direct friction contact between the alumina powder material and the inner wall of the tank body.

[0007] On the upper left and right sides of the support base, a left support and a right support are respectively arranged. On the left and right sides of the outer side wall of the middle section of the mixing tank body, a left rotating shaft and a right rotating shaft are respectively fixedly connected. The mixing tank body is rotatably mounted between the left and right supports through the left and right rotating shafts.

[0008] A driving motor is arranged at the bottom of the right support. The right rotating shaft of the mixing tank body is in transmission connection with the driving motor through a transmission assembly. An auxiliary material storage tank for containing liquid auxiliary materials is arranged outside the right support. An inlet hopper and a discharge pump are arranged above the top cover of the auxiliary material storage tank. The inlet end of the discharge pump extends into the auxiliary material storage tank. The discharge end of the discharge pump is connected with a feeding pipe. A spraying pipe for spraying liquid auxiliary materials is arranged on the inner wall of the mixing tank body. Nozzles are installed on the spraying pipe for atomizing and spraying the liquid auxiliary materials onto the alumina powder material in the tank, and for fully and evenly turning and mixing.

[0009] A feeding pipe is coaxially arranged inside the right rotating shaft. One end of the feeding pipe is fixedly connected with the spraying pipe, and the other end is in sealed rotational connection with the feeding pipe through a rotary joint. An electric control box is arranged on the front side of the right support. The discharge pump and the driving motor are both electrically connected to the electric control box.

[0010] Further, the bottoms of the left support and the right support are respectively fixedly connected to the upper surfaces of the left and right sides of the support base to form a "U"-shaped frame structure. And a structural reinforcing rib is connected between the lower parts at the rear sides of the two supports. The left and right supports are both isosceles trapezoidal cavity structures that are narrower at the top and wider at the bottom.

[0011] Further, a "C"-shaped notch is arranged at the front part of the support base directly below the mixing tank body, which is convenient for the material receiving trolley to enter and exit below the mixing tank body to receive the discharged material from the discharge port.

[0012] Further, the left and right rotating shafts of the mixing tank body are respectively rotatably connected above the left and right supports through a left bearing seat and a right bearing seat. Preferably, both the left bearing seat and the right bearing seat are vertical spherical external bearing seats.

[0013] Further, the transmission assembly includes a transmission belt, a driving wheel and a driven wheel. The driving wheel is installed on the driving motor, and the driven wheel is installed on the right rotating shaft of the mixing tank body. The transmission belt is cooperatively wound between the driving wheel and the driven wheel. Preferably, the driving motor is a reduction motor, that is, the driving motor is itself connected with a gear reduction mechanism, which helps to increase the output torque of the driving motor.

[0014] The present utility model also includes other components that can enable it to be used normally, which are all conventional means in the art. In addition, the devices or components not defined in the present utility model, such as: the material receiving trolley, the vertical spherical external bearing seat, the rotary joint, the discharge pump, the driving motor, and the electric control box and its internal control circuit setting, etc., all adopt the existing technologies in the art.

[0015] The beneficial effects of the utility model are as follows:

[0016] The polyurethane lined double cone mixer for alumina ceramic powder production uses a mixing method in which the liquid auxiliary material is continuously sprayed into the rotary joint, making the mixing effect between the alumina powder material and the liquid auxiliary material more uniform, more efficient and more applicable. In addition, by adding a polyurethane lining layer to the inner wall of the mixer container, the friction contact between the alumina powder material and the stainless steel inner wall of the mixer during the mixing process is isolated, which completely eliminates the possibility of stainless steel components being mixed into the alumina powder material, which is conducive to ensuring the high purity requirements of the processed alumina ceramic powder, and thus ensuring the product quality of high-purity alumina ceramics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the double cone mixer in the embodiment.

[0018] Figure 2 for Figure 1 Schematic diagram of the top view of the support base along the AA direction.

[0019] Figure 3 for Figure 1 A schematic diagram of the side structure of the left bracket along the BB direction. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments.

[0021] It should be noted that the terms "up", "down", "front", "back", "left", "right", "inside", "outside" and the like indicating directions or positional relationships are based on the drawings and are for the convenience of description only.

[0022] Example

[0023] like Figure 1-3 As shown, a polyurethane lined double-cone mixer for making aluminum oxide ceramic powder comprises a support base 1 and a mixing tank body 2 which is flippably mounted above the support base.

[0024] The mixing tank body is a double-cone mixing tank with a cylindrical middle section and conical ends. A feed port and a discharge port are respectively provided at both ends of the mixing tank body. A feed end cover 3 is detachably connected to the feed port by a flange. When feeding the double-cone mixing tank, the feed end cover can be opened to feed materials, such as alumina powder materials and other powder auxiliary materials. An observation port 4 is also provided on the feed end cover, and a flange blind plate is detachably connected to the observation port through a quick-release clamp. A discharge valve 5 is provided on the discharge port, and the discharge valve is a manual butterfly valve for discharge operation after mixing.

[0025] The inner surface of the stainless - steel wall of the mixing tank body is covered with a polyurethane lining isolation layer 6, which is used to isolate the direct frictional contact between the alumina powder material and the inner wall of the tank body, prevent the stainless - steel inner wall of the tank body from wearing micro - powder from contaminating the alumina powder material, and ensure the purity of the alumina ceramic powder. The wear of the polyurethane lining will not have an adverse effect on the quality of the alumina ceramic powder. Moreover, the polyurethane lining has good wear resistance, and the polyurethane lining can also be conveniently replaced, which is beneficial to extending the service life of the mixing tank body.

[0026] On the left and right sides above the support base, a left support 7 and a right support 8 are respectively arranged. On the left and right sides of the outer side wall of the middle section of the mixing tank body, a left rotating shaft 9 and a right rotating shaft 10 are respectively fixedly connected. The mixing tank body can be rotatably mounted between the left and right supports through the left and right rotating shafts.

[0027] At the bottom of the right support, a driving motor 11 is arranged. The right rotating shaft of the mixing tank body is in transmission connection with the driving motor through a transmission component. On the outside of the right support, there is an auxiliary material storage tank 12 for containing liquid auxiliary materials. Above the top cover of the auxiliary material storage tank, there is a feed hopper 13 and a discharge pump 14. The feed end of the discharge pump extends into the auxiliary material storage tank, and the discharge end of the discharge pump is connected with a feeding pipe 15. On the inner wall of the mixing tank body, there is a spraying pipe 16 for spraying liquid auxiliary materials. A nozzle 17 is installed on the spraying pipe. The nozzle is an atomizing nozzle, which is used to atomize and spray the liquid auxiliary materials onto the alumina powder material in the tank, and carry out sufficient and uniform turning and mixing to ensure the mixing efficiency and mixing effect of the liquid auxiliary materials and the powder material.

[0028] The inside of the right rotating shaft is a hollow tubular structure. Inside the right rotating shaft, a feeding pipe 18 is coaxially arranged. One end of the feeding pipe is fixedly connected with the spraying pipe, and the other end is hermetically and rotatably connected with the feeding pipe through a rotary joint 19. The rotary joint can ensure continuous rotary feeding between the feeding pipe and the feeding pipe. In front of the right support, there is an electric control box. The discharge pump and the driving motor are both electrically connected to the electric control box.

[0029] The bottoms of the left support and the right support are respectively fixedly connected to the upper surfaces of the left and right sides of the support base to form a "凵"-shaped frame structure. And between the lower parts at the rear sides of the two supports, a structural reinforcing rib 20 is connected to enhance the structural stability between the support base and the two supports. Both the left and right supports are isosceles trapezoidal cavity structures with a narrow upper part and a wide lower part.

[0030] In the front part of the support base directly below the mixing tank body, there is a "匚"-shaped notch 21, which is convenient for the receiving trolley to enter and exit under the mixing tank body to承接 the discharge from the discharge port. The receiving trolley is a prior art and is used to承接 and transport the mixed alumina powder material.

[0031] The left and right rotating shafts of the mixing tank are rotatably connected to the upper parts of the left and right brackets through the left bearing seat 22 and the right bearing seat 23. The left bearing seat and the right bearing seat are both vertical outer spherical bearing seats.

[0032] The transmission assembly includes a transmission belt 24, a driving wheel 25 and a driven wheel 26. The driving wheel is mounted on the driving motor, the driven wheel is mounted on the right rotating shaft of the mixing tank, and the transmission belt is wound between the driving and driven wheels. The driving motor is a reduction motor, that is, the driving motor itself is connected to a gear reduction mechanism, which helps to increase the output torque of the driving motor.

[0033] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to ordinary technicians in this technical field. Any technical deformation made within the spirit and principles of the present invention falls within the protection scope of the present invention.

Claims

1. A polyurethane lined double cone mixer for making aluminum oxide ceramic powder, comprising a support base and a mixing tank body which is flippably mounted above the support base, characterized in that: The mixing tank body is a double-cone mixing tank with a cylindrical middle section and conical ends. Feed inlets and discharge outlets are respectively arranged at both ends of the mixing tank body. A feed end cover is detachably arranged on the feed inlet, and a discharge valve is cooperatively arranged on the discharge outlet. A polyurethane lining isolation layer is closely attached to the inner wall surface of the mixing tank body; on the upper left and right sides above the support base, a left support and a right support are respectively arranged. On the left and right sides of the outer side wall of the middle section of the mixing tank body, a left rotating shaft and a right rotating shaft are respectively fixedly connected. The mixing tank body can be rotatably mounted between the left and right supports through the left and right rotating shafts; a driving motor is arranged at the bottom of the right support. The right rotating shaft of the mixing tank body is in transmission connection with the driving motor through a transmission assembly. An auxiliary material storage tank for containing liquid auxiliary materials is arranged outside the right support. Above the top cover of the auxiliary material storage tank, a feed hopper and a discharge pump are arranged. The feed end of the discharge pump extends into the auxiliary material storage tank. The discharge end of the discharge pump is connected with a feeding pipe. A spraying pipe for spraying liquid auxiliary materials is arranged on the inner wall of the mixing tank body. Nozzles are installed on the spraying pipe. A feeding pipe is coaxially arranged inside the right rotating shaft. One end of the feeding pipe is fixedly connected with the spraying pipe, and the other end is hermetically and rotatably connected with the feeding pipe through a rotary joint. An electric control box is arranged on the front side of the right support. The discharge pump and the driving motor are both electrically connected to the electric control box.

2. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: The bottoms of the left support and the right support are respectively fixedly connected to the upper surfaces on the left and right sides of the support base to form a "U"-shaped frame structure. And a structural reinforcing rib is connected between the lower parts at the rear sides of the two supports. Both the left support and the right support are isosceles trapezoidal cavity structures.

3. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: A "C"-shaped notch is arranged at the front part of the support base directly below the mixing tank body, which is convenient for the material receiving trolley to enter and exit below the mixing tank body to receive the material discharged from the discharge outlet.

4. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: The left and right rotating shafts of the mixing tank body are respectively rotationally connected to the upper parts of the left and right supports through a left bearing seat and a right bearing seat.

5. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: The transmission assembly includes a transmission belt, a driving wheel and a driven wheel. The driving wheel is installed on the driving motor, and the driven wheel is installed on the right rotating shaft of the mixing tank body. The transmission belt is cooperatively wound between the driving wheel and the driven wheel.

6. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: An observation port is further arranged on the feed end cover, and a flange blind plate is detachably arranged on the observation port.

7. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 1, characterized in that: The discharge valve is a manual butterfly valve.

8. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 4, characterized in that: Both the left bearing seat and the right bearing seat are vertical outer spherical bearing seats.

9. The polyurethane lined double cone mixer for making alumina ceramic powder according to claim 5, characterized in that: The driving motor is a reduction motor.

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