Water inlet control device for calcium hydroxide digester

Abstract

The utility model provides a kind of calcium hydroxide digester water inlet control equipment, it is related to digester technical field, and it includes: rack, liquid inlet pipe, the top end of rack is fixedly connected with in liquid inlet pipe;Water tank, the surface of rack is opened in the side close to liquid inlet pipe of water tank;Spray head, the lower surface of water tank is fixedly connected with spray head;Flow control mechanism, the inside of liquid inlet pipe is equipped with flow control mechanism;Baffle, the two sides of the surface of baffle rotationally connected in the inside side wall of liquid inlet pipe;Electromagnet, the inside of baffle is fixedly connected with electromagnet, by using trigger mechanism in exhaust pipe real-time monitoring gas quantity generated by reaction, indirectly judge calcium hydroxide feeding quantity and reaction intensity, when gas quantity increases, pressure switch triggers electromagnet action, makes liquid inlet pipe baffle opening increase, increases water intake quantity;Conversely, reduce water intake quantity, to reach "water supply according to demand", avoid waste or insufficient effect.

Description

[0001] This utility model relates to the field of digester technology, and in particular to a water inlet control device for a calcium hydroxide digester. Background Technology

[0002] When digesting calcium hydroxide, water needs to be injected into the digester to react with the calcium hydroxide. The water inlet system of traditional calcium hydroxide digesters has the following problems:

[0003] The digestion reaction generates a large amount of dust and heat. Traditional equipment lacks an effective dust suppression mechanism, and dust accumulation may lead to an explosion risk. At the same time, if the gas produced by the reaction is not properly discharged, it may cause abnormal internal pressure of the equipment.

[0004] Water is often injected directly in a columnar or high-flow-rate manner, resulting in limited contact area with solid calcium hydroxide. This not only leads to low reaction efficiency but also causes clumping due to localized water accumulation, affecting product quality. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] To address this issue, this application provides a water inlet control device for a calcium hydroxide digester. By injecting water mist, it increases the contact area with calcium hydroxide, reduces dust, improves the reaction rate, and prevents dust explosions. Furthermore, it automatically adjusts the amount of water required for the reaction based on the internal calcium hydroxide capacity of the device.

[0007] The first aspect of this application provides a calcium hydroxide digester inlet water control device, comprising: a frame;

[0008] Liquid inlet pipe, which is fixedly connected to the top of the frame;

[0009] Water tank, the water tank being formed on the surface of the frame near the liquid inlet pipe;

[0010] The nozzle is fixedly connected to the lower surface of the water tank;

[0011] Atomizing cover, which is fixedly connected to the lower surface of the water tank near the nozzle;

[0012] A flow control mechanism is located inside the inlet pipe;

[0013] A baffle, which is rotatably connected to both sides of the inner sidewall of the liquid inlet pipe;

[0014] An electromagnet, which is fixedly connected inside the baffle;

[0015] A reset spring is fixedly connected to the side wall of the baffle.

[0016] Preferably, the rack;

[0017] The feed inlet is located on the upper surface of the frame;

[0018] A drain outlet is provided on the lower surface of the frame;

[0019] A drive motor, which is fixedly connected to the side wall of the frame;

[0020] A stirring shaft, which is fixedly connected to the drive shaft of a drive motor;

[0021] An exhaust pipe is fixedly connected to the upper surface of the frame;

[0022] A triggering mechanism is located inside the exhaust pipe.

[0023] Preferably, the triggering mechanism and the exhaust pipe;

[0024] A support frame, which is fixedly connected to the inner wall of the exhaust pipe;

[0025] A rotating shaft, which is rotatably connected inside the support frame;

[0026] Fan blades, which are fixedly connected to the lower end of the rotating shaft;

[0027] A rotating plate, which is fixedly connected to the upper end of the rotating shaft;

[0028] The movable slot is formed inside the rotating plate;

[0029] A pressure plate, which is slidably connected inside the movable groove;

[0030] An ejector spring, the end of which is fixedly connected to the surface of the pressure plate;

[0031] A pressure switch is fixedly connected to the surface of the movable groove away from the pressure plate.

[0032] Preferably, the bottom of the frame is a hollow frame in the shape of an arc, the stirring shaft is located at the lower end of the frame, and the axis of the stirring shaft is the same as the axis of the arc.

[0033] Preferably, the feed inlet is connected to the inside of the frame, the drain outlet is connected to the inside of the frame, and the tops of both the feed inlet and the drain outlet are fitted with dust covers.

[0034] Preferably, the baffle is semi-circular and the diameter of the baffle is equal to the inner diameter of the liquid inlet pipe. There are two baffles, located on both sides of the liquid inlet pipe and on the same horizontal plane. The electromagnets inside the two baffles have the same magnetic pole at their closest ends.

[0035] Preferably, the surface of the atomizing cover has multiple drainage holes that are wider at the top and narrower at the bottom. The atomizing cover surrounds the outer surface of the nozzle and its ends are welded to the lower surface of the water tank.

[0036] Preferably, one end of the pressure switch is connected to a power source, and the other end is connected to an electromagnet via a wire. The pressure plate is located near the center of the rotating plate, and the pressure switch is located away from the center of the rotating plate.

[0037] In some possible embodiments, the calcium hydroxide digester inlet water control device provided in this application has all the beneficial effects of the fastener, which will not be repeated here.

[0038] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects:

[0039] 1. This utility model uses a triggering mechanism inside the exhaust pipe to monitor the amount of gas generated in real time, thereby indirectly determining the amount of calcium hydroxide added and the intensity of the reaction. When the amount of gas increases, the pressure switch triggers the electromagnet to increase the opening of the liquid inlet pipe baffle, thus increasing the water inlet; conversely, it reduces the water inlet, thereby achieving "on-demand water supply" and avoiding waste or insufficiency.

[0040] 2. This utility model uses a nozzle and an atomizing hood to disperse water into a fine mist, which not only increases the contact area with calcium hydroxide and accelerates the digestion reaction, but also quickly adsorbs dust and reduces the risk of explosion. At the same time, the exhaust pipe can discharge the reaction gas in time, balance the internal pressure of the equipment, and improve operational safety.

[0041] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0042] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0043] Figure 1 This utility model provides a front three-dimensional structural diagram of the frame of a calcium hydroxide digester water inlet control device;

[0044] Figure 2 This utility model provides a front sectional three-dimensional structural diagram of the overall structure of a calcium hydroxide digester water inlet control device;

[0045] Figure 3 This utility model provides a front sectional plan view of the overall structure of a calcium hydroxide digester water inlet control device.

[0046] Figure 4This utility model proposes a water inlet control device for a calcium hydroxide digester. Figure 3 A magnified structural diagram at point A;

[0047] Figure 5 This utility model provides a front sectional plan view of the flow control mechanism of a calcium hydroxide digester inlet water control device.

[0048] Figure 6 This utility model proposes a water inlet control device for a calcium hydroxide digester. Figure 3 A magnified structural diagram at point B.

[0049] Figure label:

[0050] 1. Frame; 2. Feed inlet; 3. Drain outlet; 4. Drive motor; 5. Agitator shaft; 6. Liquid inlet pipe;

[0051] 7. Flow control mechanism; 701. Baffle; 702. Electromagnet; 703. Return spring;

[0052] 8. Water tank; 9. Nozzle; 10. Atomizing cover; 11. Exhaust pipe;

[0053] 12. Triggering mechanism; 1201. Support frame; 1202. Rotating shaft; 1203. Fan blade; 1204. Rotating plate; 1205. Movable groove; 1206. Pressure plate; 1207. Ejection spring; 1208. Pressure switch. Detailed Implementation

[0054] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0055] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0056] In some embodiments, according to Figure 1 - Figure 5 As shown, a calcium hydroxide digester inlet water control device includes: a frame 1;

[0057] Liquid inlet pipe 6 is fixedly connected to the top of frame 1;

[0058] Water tank 8 is located on the surface of frame 1 near the liquid inlet pipe 6;

[0059] Nozzle 9 is fixedly connected to the lower surface of water tank 8;

[0060] Atomizing cover 10 is fixedly connected to the lower surface of the water tank 8 near the nozzle 9. The surface of the atomizing cover 10 has multiple drainage holes that are wider at the top and narrower at the bottom. The atomizing cover 10 surrounds the outer surface of the nozzle 9 and its end is welded to the lower surface of the water tank 8.

[0061] Flow control mechanism 7 is located inside the liquid inlet pipe 6;

[0062] Baffle 701 is rotatably connected to both sides of the inner sidewall of the liquid inlet pipe 6.

[0063] Electromagnet 702 is fixedly connected inside baffle 701. Baffle 701 is semi-circular and its diameter is equal to the inner diameter of liquid inlet pipe 6. There are two baffles 701, located on both sides of liquid inlet pipe 6 and on the same horizontal plane. The electromagnets 702 inside the two baffles 701 have the same magnetic pole at their closest ends.

[0064] The return spring 703 is fixedly connected to the side wall of the baffle 701.

[0065] Feed inlet 2 is located on the upper surface of frame 1;

[0066] The drain outlet 3 is located on the lower surface of the frame 1. The feed inlet 2 is connected to the interior of the frame 1, and the drain outlet 3 is also connected to the interior of the frame 1. Both the feed inlet 2 and the drain outlet 3 are fitted with dust covers at their top ends.

[0067] Drive motor 4 is fixedly connected to the side wall of frame 1;

[0068] The stirring shaft 5 is fixedly connected to the drive shaft of the drive motor 4. The bottom of the frame 1 is a hollow frame in the shape of an arc. The stirring shaft 5 is located at the lower end of the frame 1, and the axis of the stirring shaft 5 is the same as the axis of the arc.

[0069] Exhaust pipe 11 is fixedly connected to the upper surface of frame 1;

[0070] Triggering mechanism 12 is located inside exhaust pipe 11.

[0071] In this embodiment, the drive motor 4 is started, and calcium hydroxide is poured into the inside of the frame 1 from the feed port 2. At this time, the stirring shaft 5 crushes and stirs the solid calcium hydroxide falling into the frame 1. The liquid inlet pipe 6 is connected to the water tank 8, and the digestion liquid is input into the inside of the water tank 8 through the liquid inlet pipe 6. The liquid inside the water tank 8 is sprayed out through the nozzle 9 and dispersed into water mist through the atomizing cover 10. The water mist is evenly spread on the surface of the calcium hydroxide and reacts with it, increasing the contact area between water and calcium hydroxide. At the same time, a large amount of dust is generated when calcium hydroxide is stirred and crushed. The water mist can quickly reduce the dust and avoid the explosion hazard caused by dust.

[0072] Example 2: According to Figure 3 - Figure 6 As shown, trigger mechanism 12, exhaust pipe 11;

[0073] Support frame 1201 is fixedly connected to the inner wall of exhaust pipe 11;

[0074] Rotary shaft 1202 is rotatably connected inside support frame 1201;

[0075] Fan blade 1203 is fixedly connected to the lower end of rotating shaft 1202;

[0076] Rotating plate 1204 is fixedly connected to the upper end of rotating shaft 1202;

[0077] The movable slot 1205 is located inside the rotating plate 1204;

[0078] Pressure plate 1206 is slidably connected inside movable groove 1205;

[0079] The ejector spring 1207 is fixedly connected to the surface of the pressure plate 1206 at its end.

[0080] Pressure switch 1208 is fixedly connected to the surface of movable groove 1205 away from pressure plate 1206. One end of pressure switch 1208 is connected to a power source, and the other end is connected to electromagnet 702 through a wire. Pressure plate 1206 is close to the center of rotating plate 1204, and pressure switch 1208 is away from the center of rotating plate 1204.

[0081] In this embodiment, when water reacts with calcium hydroxide, a large amount of heat and gas are generated. The gas is discharged from the exhaust pipe 11. When there is a large amount of calcium hydroxide solid, the reaction is more intense and more gas is generated. The gas drives the fan blade 1203 to rotate faster. At this time, the rotating shaft 1202 drives the rotating plate 1204 to rotate faster. The pressure plate 1206 inside the rotating plate 1204 moves to the outside of the rotating plate 1204 under the action of centrifugal force, pressing the pressure switch 1208 on the outside. At this time, the electromagnet 702 generates magnetism. The close ends of the electromagnets 702 inside the baffles 701 on both sides are the same magnetic poles, so that the baffles 701 on both sides overcome the elastic force of the return spring 703 and the opening angle becomes larger. The liquid passing through the liquid inlet pipe 6 increases, which increases the amount of water sprayed from the nozzle 9 and the amount of water inside the frame 1.

[0082] When there is less calcium hydroxide solid, less gas is produced in the reaction, the pressure switch 1208 is not pressed, the baffle 701 opens to a smaller angle under the action of the reset spring 703, and the output liquid also decreases. This enables the water volume to be adjusted according to the calcium hydroxide capacity inside the frame 1, thus saving water usage.

[0083] Working principle: Start the drive motor 4 and pour calcium hydroxide into the machine frame 1 through the feed port 2. At this time, the stirring shaft 5 crushes and stirs the solid calcium hydroxide falling into the machine frame 1. The liquid inlet pipe 6 is connected to the water tank 8. The digestion liquid is input into the water tank 8 through the liquid inlet pipe 6. The liquid inside the water tank 8 is sprayed out through the nozzle 9 and dispersed into water mist through the atomizing hood 10. The water mist is evenly spread on the surface of calcium hydroxide and reacts with it, increasing the contact area between water and calcium hydroxide. At the same time, calcium hydroxide will generate a lot of dust when it is stirred and crushed. The water mist can quickly reduce the dust and avoid the explosion hazard caused by dust.

[0084] When water reacts with calcium hydroxide, a large amount of heat and gas are generated. The gas is discharged from the exhaust pipe 11. When there is a large amount of calcium hydroxide solid, the reaction is more intense and produces more gas. The gas drives the fan blade 1203 to rotate faster. At this time, the rotating shaft 1202 drives the rotating plate 1204 to rotate faster. The pressure plate 1206 inside the rotating plate 1204 moves to the outside of the rotating plate 1204 under the action of centrifugal force, pressing the pressure switch 1208 on the outside. At this time, the electromagnet 702 generates magnetism. The close ends of the electromagnets 702 inside the baffles 701 on both sides are the same magnetic poles, so that the baffles 701 on both sides overcome the elastic force of the return spring 703 and the opening angle becomes larger. The liquid passing through the liquid inlet pipe 6 increases, which increases the amount of water sprayed from the nozzle 9 and the amount of water inside the frame 1.

[0085] When there is less calcium hydroxide solid, less gas is produced in the reaction, the pressure switch 1208 is not pressed, the baffle 701 opens to a smaller angle under the action of the reset spring 703, and the output liquid also decreases. This enables the water volume to be adjusted according to the calcium hydroxide capacity inside the frame 1, thus saving water usage.

[0086] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0087] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0088] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0090] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water inlet control device for a calcium hydroxide digester, characterized in that, include: Rack (1); Liquid inlet pipe (6), which is fixedly connected to the top of the frame (1); Water tank (8), the water tank (8) is opened on the surface of the frame (1) near the liquid inlet pipe (6); The nozzle (9) is fixedly connected to the lower surface of the water tank (8); Atomizing cover (10) is fixedly connected to the lower surface of the water tank (8) on the side near the nozzle (9); A flow control mechanism (7) is located inside the liquid inlet pipe (6); Baffle (701), the baffle (701) is rotatably connected to both sides of the inner sidewall of the liquid inlet pipe (6); An electromagnet (702) is fixedly connected inside a baffle (701); A reset spring (703) is fixedly connected to the side wall of the baffle (701).

2. The calcium hydroxide digester inlet water control device according to claim 1, characterized in that: The frame (1); The feed inlet (2) is located on the upper surface of the frame (1); Sewage outlet (3), the sewage outlet (3) is opened on the lower surface of the frame (1); Drive motor (4), which is fixedly connected to the side wall of frame (1); A stirring shaft (5) is fixedly connected to the drive shaft of a drive motor (4); An exhaust pipe (11) is fixedly connected to the upper surface of the frame (1); Triggering mechanism (12) is located inside the exhaust pipe (11).

3. The calcium hydroxide digester inlet water control device according to claim 2, characterized in that: The triggering mechanism (12), the exhaust pipe (11); A support frame (1201) is fixedly connected to the inner wall of the exhaust pipe (11); A rotating shaft (1202) is rotatably connected inside the support frame (1201); Fan blade (1203), the fan blade (1203) is fixedly connected to the lower end of the rotating shaft (1202); A rotating plate (1204) is fixedly connected to the upper end of a rotating shaft (1202); The movable slot (1205) is formed inside the rotating plate (1204); Pressure plate (1206), which is slidably connected inside the movable groove (1205); An ejector spring (1207) is provided, the end of which is fixedly connected to the surface of the pressure plate (1206). Pressure switch (1208) is fixedly connected to the surface of the movable groove (1205) away from the pressure plate (1206).

4. The calcium hydroxide digester inlet water control device according to claim 3, characterized in that: The bottom of the frame (1) is a hollow frame in the shape of an arc. The stirring shaft (5) is located at the lower end of the frame (1), and the axis of the stirring shaft (5) is the same as the axis of the arc.

5. The calcium hydroxide digester inlet water control device according to claim 3, characterized in that: The feed inlet (2) is connected to the inside of the frame (1), and the drain outlet (3) is connected to the inside of the frame (1). Both the top of the feed inlet (2) and the drain outlet (3) are fitted with dust covers.

6. The calcium hydroxide digester inlet water control device according to claim 2, characterized in that: The baffle (701) is semi-circular and the diameter of the baffle (701) is equal to the internal diameter of the liquid inlet pipe (6). There are two baffles (701), which are located on both sides of the liquid inlet pipe (6) and are on the same horizontal plane. The electromagnets (702) inside the two baffles (701) have the same magnetic pole at one end.

7. The calcium hydroxide digester inlet water control device according to claim 3, characterized in that: The surface of the atomizing cover (10) is provided with a plurality of water leakage holes that are wider at the top and narrower at the bottom. The atomizing cover (10) surrounds the outer surface of the nozzle (9) and its end is welded to the lower surface of the water tank (8).

8. The calcium hydroxide digester inlet water control device according to claim 3, characterized in that: One end of the pressure switch (1208) is connected to a power source, and the other end is connected to an electromagnet (702) via a wire. The pressure plate (1206) is close to the center of the rotating plate (1204), and the pressure switch (1208) is far from the center of the rotating plate (1204).

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