Mixing device for calcium hydroxide processing

Abstract

The utility model provides a mixing device for calcium hydroxide processing, which comprises a reaction kettle, a top cover arranged at the upper part of the reaction kettle, a motor arranged at the axis of the upper part of the top cover, a first transmission rod connected to the end part of an output shaft of the motor, a plurality of support plates arranged on the outer side wall of the first transmission rod, and connecting plates arranged at the lower parts of the plurality of support plates, guide plates are arranged on the lower portions of the multiple connecting plates, a connecting frame is arranged on the inner side wall of the reaction kettle, a screening disc is arranged on the inner side wall of the connecting frame, and the upper portion of the screening disc is attached to the lower portions of the multiple guide plates; through rotation of the motor, the first transmission rod and parts on the first transmission rod which are matched with the arranged connecting frame and the screening disc, the situation of uneven reaction caused by calcium oxide accumulation can be avoided, and the situation that the service life of the reaction kettle is shortened due to local high temperature can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium hydroxide processing, and particularly relates to a mixing device for calcium hydroxide processing. Background Art

[0002] Calcium hydroxide is an inorganic compound with the chemical formula Ca(OH)₂ and a molecular weight of 74.10; it is commonly known as slaked lime or hydrated lime; it is a white hexagonal crystal powder.

[0003] When making calcium hydroxide, calcium oxide needs to be added to an appropriate amount of water, and calcium hydroxide can be extracted through a digestion reaction and subsequent separation and purification. In the prior art, when adding calcium oxide, generally, calcium oxide and a catalyst are introduced into a reaction kettle through a feeding hopper and stirred to react with water, thereby preventing the powder of calcium oxide from flying up and accelerating the reaction rate.

[0004] However, adding calcium oxide into water through a feeding hopper will cause calcium oxide to accumulate together, making it unable to evenly contact water, which may result in incomplete reactions, unable to completely convert calcium oxide into calcium hydroxide, and may accelerate the corrosion of equipment due to local high temperature and strong alkali environment, reducing the service life of the equipment. Content of the Utility Model

[0005] In view of this, the utility model provides a mixing device for calcium hydroxide processing, which can make most of the calcium oxide powder added from the feeding hopper stay on the screening plate due to friction through the arranged connecting frame and screening plate, and drive the first transmission rod to rotate by setting a motor, thereby driving the guide plate to rotate, and further can continuously guide the calcium oxide powder. Therefore, the calcium oxide powder can fall evenly, thus avoiding the situation of uneven reaction caused by the accumulation of calcium oxide, and avoiding local high temperature and reducing the service life of the reaction kettle.

[0006] To solve the above technical problems, the utility model provides a mixing device for calcium hydroxide processing, including a reaction kettle, a top cover is arranged on the upper part of the reaction kettle, the top cover is clamped on the upper part of the reaction kettle, a motor is arranged at the central axis of the upper part of the top cover, the motor is connected to the upper part of the top cover through bolts, the end of the output shaft of the motor is connected with a first transmission rod, one end of the first transmission rod is connected with the output shaft of the motor through a coupling, multiple support plates are arranged on the outer side wall of the first transmission rod, the multiple support plates are fixedly connected to the upper part of the outer side wall of the first transmission rod, connecting plates are arranged below the multiple support plates, the connecting plates are fixedly connected to the lower part of the support plates, and a guide plate is arranged below the multiple connecting plates, and the guide plate is fixedly connected to the lower part of the connecting plates.

[0007] A connection frame is provided on the inner side wall of the reaction kettle. The connection frame is connected to the inner side wall of the reaction kettle by bolts. A screening plate is provided on the inner side wall of the connection frame. The screening plate is welded to the inner side wall of the connection frame. The upper part of the screening plate is in contact with the lower parts of multiple guide plates. One side of the upper part of the top cover is provided with a feeding hopper. The feeding hopper is welded to the upper part of the top cover, and a feeding port is opened on the top cover corresponding to the position of the feeding hopper.

[0008] On the outer side wall of the first transmission rod and below the screening plate, multiple first stirring plates are provided. The multiple first stirring plates are welded to the outer side wall of the first transmission rod. Multiple through holes for materials are opened on the multiple first stirring plates. The multiple through holes for materials can be integrally formed with the first stirring plates by die casting during manufacturing.

[0009] One end of each of the multiple first stirring plates is provided with a first scraping plate. The first scraping plate is fixedly connected to one end of the multiple first stirring plates.

[0010] One end of the first transmission rod is provided with a second transmission rod. The first transmission rod is fixedly connected to one end of the second transmission rod. Multiple second stirring plates are provided on the outer side wall of the second transmission rod. The multiple second stirring plates are welded to the outer side wall of the second transmission rod. Multiple second scraping plates are provided on the multiple second stirring plates. The second scraping plates are fixedly connected to the second stirring plates. Multiple through holes for materials are also opened on the multiple second stirring plates. The multiple through holes for materials can be integrally formed with the second stirring plates by die casting during manufacturing.

[0011] One side of the upper part of the top cover is provided with an exhaust pipe. The exhaust pipe is connected to one side of the upper part of the top cover through a flange. One end of the exhaust pipe is connected to a collection system. The collection system is used for recycling the hot gas generated by the reaction.

[0012] A support frame is provided on the outer side wall of the reaction kettle. The support frame is connected to the outer side wall of the reaction kettle by bolts. Support legs are provided at the four corners of the lower part of the support frame. The support legs are welded to the lower part of the support frame.

[0013] The beneficial effects of the above technical solution of the present utility model are as follows:

[0014] 1. By providing the connection frame and the screening plate, most of the calcium oxide powder added from the feeding hopper can stay on the screening plate due to friction. The motor is provided to drive the first transmission rod to rotate, thereby driving the guide plates to rotate. Furthermore, by continuously guiding the calcium oxide powder, the calcium oxide powder can fall evenly, thus avoiding the situation of uneven reaction caused by the accumulation of calcium oxide and preventing local high temperature from reducing the service life of the reaction kettle.

[0015] 2. Through the provided first stirring plate and the material-passing holes formed thereon, the digestion reaction of calcium oxide and water is accelerated through stirring, and calcium oxide can be prevented from adhering to the inner side wall of the reaction kettle by multiple first scraping plates. Thus, not only can waste be prevented, but also the adhesion to the inner side wall of the reaction kettle can be avoided, making it difficult to clean.

[0016] 3. Through the provided second stirring plate and the material-passing holes formed thereon, the digestion reaction can be accelerated, and the arc-shaped inner wall of the reaction kettle can be stirred. Furthermore, in cooperation with multiple second scraping plates, it can further prevent calcium oxide and the suspension after the reaction from adhering to the arc-shaped inner wall at the bottom of the reaction kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic top view structure diagram of the present utility model with the top cover removed;

[0019] Figure 3 is a schematic diagram of the partial component structure of the present utility model;

[0020] Figure 4 is a schematic diagram of the support plate of the present utility model and the various components thereon;

[0021] Figure 5 is a schematic diagram of the second transmission rod of the present utility model and the various components thereon.

[0022] In the figure: 101, reaction kettle; 102, top cover; 103, motor; 104, first transmission rod; 105, support plate; 106, connecting plate; 107, material guiding plate; 108, connecting frame; 109, screening plate; 110, feeding hopper;

[0023] 201, first stirring plate; 202, material-passing hole; 203, first scraping plate;

[0024] 301, second transmission rod; 302, second stirring plate; 303, second scraping plate;

[0025] 401, exhaust pipe;

[0026] 501, support frame; 502, support leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-5, the technical solutions of the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

[0028] As Figure 1 , 3 shown: A mixing device for calcium hydroxide processing includes a reaction kettle 101. The reaction kettle 101 is provided so that calcium oxide can carry out a digestion reaction therein. A top cover 102 is provided on the upper part of the reaction kettle 101 to support the various components thereon and block the hot gas generated by the reaction. The top cover 102 is snap-connected to the upper part of the reaction kettle 101, making it convenient for disassembly and assembly. A motor 103 is provided at the axial center of the upper part of the top cover 102 to rotate the output shaft of the motor 103, thereby driving the various components below it to rotate accordingly. The motor 103 is connected to the upper part of the top cover 102 by bolts, making it convenient for disassembly and assembly when the motor 103 needs to be maintained or replaced. The end of the output shaft of the motor 103 is connected to a first transmission rod 104 to rotate the first transmission rod 104, thereby driving the various components thereon to rotate accordingly.

[0029] As Figure 1 , 2 As shown in Figures 4: One end of the first transmission rod 104 is connected to the output shaft of the motor 103 through a coupling, so that the first transmission rod 104 will rotate along with the rotation of the output shaft of the motor 103 and is convenient for disassembly and assembly. Multiple support plates 105 are provided on the outer side wall of the first transmission rod 104 to support the various components below it. The multiple support plates 105 are fixedly connected to the upper part of the outer side wall of the first transmission rod 104, making its connection structure more stable. Connecting plates 106 are provided at the lower parts of the multiple support plates 105 to increase the stability of the calcium oxide feeding when the feeding plate 107 rotates during feeding. The connecting plates 106 are fixedly connected to the lower parts of the support plates 105, making its connection structure more stable. A feeding plate 107 is provided at the lower parts of the multiple connecting plates 106. By rotating the multiple feeding plates 107, the feeding plate 107 can cooperate with the screening plate 109 to evenly feed calcium oxide. The feeding plate 107 is fixedly connected to the lower part of the connecting plate 106, making its connection structure more stable.

[0030] As Figure 2 , 4As shown in the figure: A connecting frame 108 is provided on the inner side wall of the reactor 101. The connecting frame 108 is provided to support the screening plate 109. The connecting frame 108 is connected to the inner side wall of the reactor 101 by bolts, so that the connecting frame 108 and the screening plate 109 are convenient for disassembly and assembly when maintenance or replacement is needed. The screening plate 109 is provided on the inner side wall of the connecting frame 108. The screening plate 109 is provided to block the calcium oxide falling from the feeding hopper 110 and make it evenly fall into the reactor 101 for digestion reaction by rotating multiple guiding plates 107. It can also filter out larger particles and impurities, further increasing the purity of the calcium hydroxide production. The screening plate 109 is welded to the inner side wall of the connecting frame 108, making its connection structure more stable. The upper part of the screening plate 109 fits with the lower part of multiple guiding plates 107, strengthening the screening and guiding effects.

[0031] As Figure 1 , 2 , as shown in Figures 3: A feeding hopper 110 is provided on one side of the upper part of the top cover 102. The feeding hopper 110 is provided to enable water, calcium oxide, and catalyst to be respectively added into the reactor 101. The feeding hopper 110 is welded to the upper part of the top cover 102, making its connection structure more stable. And a feeding port is provided on the top cover 102 corresponding to the position of the feeding hopper 110, so that materials can be added into the reactor 101 through the feeding hopper 110. Multiple first stirring plates 201 are provided on the outer side wall of the first transmission rod 104 and below the screening plate 109. The multiple first stirring plates 201 are provided to rotate through the multiple first stirring plates 201, thereby accelerating the reaction rate of calcium oxide and water. The multiple first stirring plates 201 are welded to the outer side wall of the first transmission rod 104, making its connection structure more stable. Multiple through holes 202 are provided on each of the multiple first stirring plates 201. The multiple through holes 202 are provided to enable calcium oxide and water to pass through the through holes 202, making the reaction of calcium oxide and water more uniform. The multiple through holes 202 and the first stirring plates 201 can be integrally formed by die casting during production, making its connection structure more stable.

[0032] As Figure 1 , 3 , as shown in Figures: At one end of each of the multiple first stirring plates 201, a first scraping plate 203 is provided. The first scraping plate 203 is provided to scrape the inner side wall of the reactor 101, thereby avoiding the adhesion of calcium oxide powder on the inner side wall of the reactor 101. Therefore, it can be scraped off by the multiple first scraping plates 203, avoiding the waste of calcium oxide powder or its adhesion on the inner side wall of the reactor 101 and being difficult to clean. The first scraping plate 203 is fixedly connected to one end of the multiple first stirring plates 201, making its connection structure more stable.

[0033] As Figure 3 ,5 As shown in the figure: A second transmission rod 301 is provided at one end of the first transmission rod 104. By setting the second transmission rod 301, the rotation of the second transmission rod 301 can drive the components thereon to rotate accordingly. The first transmission rod 104 is fixedly connected to one end of the second transmission rod 301, making its connection structure more stable. Furthermore, the rotation of the first transmission rod 104 can drive the second transmission rod 301 to rotate accordingly. Multiple second stirring plates 302 are provided on the outer side wall of the second transmission rod 301. By setting multiple second stirring plates 302, the bottom of the reaction kettle 101 can be stirred. The multiple second stirring plates 302 are welded to the outer side wall of the second transmission rod 301, making its connection structure more stable. Multiple second scraping plates 303 are provided on the multiple second stirring plates 302. By setting the second scraping plates 303, the arc-shaped inner wall of the bottom of the reaction kettle 101 can be treated, and further prevent calcium oxide from sticking to the arc-shaped inner wall of the bottom of the reaction kettle 101. The second scraping plates 303 are fixedly connected to the second stirring plates 302, making its connection structure more stable.

[0034] As Figure 1 , 3 As shown in Figures 5: Multiple through holes 202 are also provided on the multiple second stirring plates 302. By setting the through holes 202 on the multiple second stirring plates 302, calcium oxide, water, and the precipitated suspension can also pass through the through holes 202, making the stirring more uniform. Furthermore, calcium oxide and water can react fully, avoiding uneven reaction. The multiple through holes 202 and the second stirring plates 302 can be integrally formed by die casting during production, making its connection structure more stable. An exhaust pipe 401 is provided on one side of the upper part of the top cover 102. By setting the exhaust pipe 401, the hot gas generated by the digestion reaction can be discharged through the exhaust pipe 401. The exhaust pipe 401 is connected to the upper part of the top cover 102 through a flange, making its connection structure more stable and facilitating disassembly and assembly of the exhaust pipe 401.

[0035] As Figure 1 shown: One end of the exhaust pipe 401 is connected to a collection system, and the collection system is used for recycling the hot gas generated by the reaction. A support frame 501 is provided on the outer side wall of the reaction kettle 101. By setting the support frame 501, the support legs 502 provided below it can be connected. The support frame 501 is connected to the outer side wall of the reaction kettle 101 through bolts, making its connection structure more stable. Support legs 502 are provided at the four corners of the lower part of the support frame 501. By setting the support legs 502, the reaction kettle 101 and the components inside it can be stably supported. The support legs 502 are welded to the lower part of the support frame 501, making its connection structure more stable.

[0036] The usage method of the present utility model:

[0037] When calcium hydroxide needs to be extracted and processed, the aqueous solution is injected into the reaction kettle 101 through the feed hopper 110. Subsequently, calcium oxide and the catalyst are added into the reaction kettle 101 through the feed hopper 110. Since calcium oxide needs to be ground into powder before adding, due to the reason of friction, it will stay above the screening plate 109 (such as the effect that a funnel can scoop up flour). Then, the motor 103 is started. At this time, the rotation of the output shaft of the motor 103 will drive the first transmission rod 104 and the second transmission rod 301 to rotate accordingly. Therefore, the first transmission rod 104 will drive multiple guide plates 107 to rotate accordingly, and further drive the calcium oxide powder on it to rotate, so that the calcium oxide powder can uniformly fall into the water for the digestion reaction. And through the rotation of multiple first stirring plates 201 and multiple second stirring plates 302, the reaction rate can be accelerated by stirring. Then, open the discharge port of the reaction kettle 101 to discharge and collect it.

[0038] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A mixing device for calcium hydroxide processing, characterized in that: It includes a reaction kettle (101), a top cover (102) is arranged on the upper part of the reaction kettle (101), a motor (103) is arranged at the center of the upper part of the top cover (102), the end of the output shaft of the motor (103) is connected with a first transmission rod (104), multiple support plates (105) are arranged on the outer side wall of the first transmission rod (104), connecting plates (106) are arranged at the lower parts of the multiple support plates (105), and a feeding guide plate (107) is arranged at the lower parts of the multiple connecting plates (106); A connecting frame (108) is arranged on the inner side wall of the reaction kettle (101), a screening plate (109) is arranged on the inner side wall of the connecting frame (108), the upper part of the screening plate (109) is in contact with the lower parts of the multiple feeding guide plates (107), and a feeding hopper (110) is arranged on one side of the upper part of the top cover (102).

2. The mixing device for calcium hydroxide processing according to claim 1, characterized in that: Multiple first stirring plates (201) are arranged on the outer side wall of the first transmission rod (104) and below the screening plate (109), and a plurality of material-passing holes (202) are formed in each of the multiple first stirring plates (201).

3. The mixing device for calcium hydroxide processing according to claim 2, characterized in that: First scraping plates (203) are arranged at one ends of the multiple first stirring plates (201).

4. The mixing device for calcium hydroxide processing according to claim 1, characterized in that: One end of the first transmission rod (104) is provided with a second transmission rod (301), multiple second stirring plates (302) are arranged on the outer side wall of the second transmission rod (301), second scraping plates (303) are arranged on the multiple second stirring plates (302), and a plurality of material-passing holes (202) are also formed in the multiple second stirring plates (302).

5. The mixing device for calcium hydroxide processing according to claim 1, characterized in that: An exhaust pipe (401) is arranged on one side of the upper part of the top cover (102), one end of the exhaust pipe (401) is connected to a collection system, and the collection system is used for recycling the hot gas generated by the reaction.

6. The mixing device for calcium hydroxide processing according to claim 1, wherein: A support frame (501) is arranged on the outer side wall of the reaction kettle (101), and support legs (502) are arranged at the four corners of the lower part of the support frame (501).

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