Calcium carbonate white mud redissolving device

Abstract

The utility model relates to the technical field of water quality treatment, and discloses a calcium carbonate white mud re-dissolving device which comprises a dissolving water bucket main body, a mud adding opening is formed in the top surface of the dissolving water bucket main body, and a water inlet is formed in the top surface of the dissolving water bucket main body. Water flow is injected into the dissolving water bucket body through a water inlet, air is injected into the dissolving water bucket body through an air inlet in an air stirrer through a cleaning plate, so that carbon dioxide in the air reacts with calcium carbonate to generate dissoluble calcium bicarbonate, and meanwhile the temperature of calcium carbonate turbid liquid is increased through a coil heater; the calcium carbonate white mud is re-dissolved, so that the calcium carbonate white mud can be directly used as replenishment water of a desulfurization system or enter a calcium carbonate crystallization and granulation system to be re-crystallized to generate granular calcium carbonate, and meanwhile, a large amount of carbon dioxide is consumed, so that the resource recycling of the waste calcium carbonate white mud is realized.

Description

Technical Field

[0001] This utility model application relates to the field of water treatment technology, specifically a calcium carbonate sludge redissolving device. Background Technology

[0002] Calcium carbonate white mud, also known as white mud or high-whiteness calcium carbonate, is mainly composed of calcium carbonate. This substance is usually produced through specific processes, such as calcining, decomposing, refining and processing calcium carbonate-containing minerals like limestone. The remarkable characteristics of white mud are its high whiteness and high purity, which makes it widely used in many fields.

[0003] Meanwhile, calcium carbonate sludge is mainly a byproduct of the papermaking industry, and conventional treatment is landfill. However, calcium carbonate sludge contains a variety of chemical substances, such as untreated residual alkali. These substances may seep into the soil during the landfill process, changing the soil structure and properties and damaging the soil ecosystem. At the same time, landfills require a large amount of land resources, which are often unusable for other purposes after landfilling. Summary of the Invention

[0004] To address the problem that calcium carbonate sludge contains various chemical substances, such as untreated residual alkali, which may seep into the soil during landfilling, altering its structure and properties and damaging the soil ecosystem, and that landfills require a large amount of land resources that are often unusable after landfilling, this invention provides a calcium carbonate sludge redissolving device to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A calcium carbonate sludge redissolving device includes a dissolving water tank body. The top surface of the dissolving water tank body has a mud inlet and a water inlet. The lower outer side of the dissolving water tank body has a drain outlet. An air stirrer is fixed to the bottom of the dissolving water tank body. A bellows is provided on the outer side of the dissolving water tank body. The air outlet of the bellows is connected to the interior of the air stirrer. The top surface of the air stirrer has several air inlets extending into the interior of the dissolving water tank body.

[0007] Furthermore, a rotating ring is rotatably connected to the upper part of the main body of the dissolving water tank. Four cleaning plates are fixed at the bottom end of the rotating ring. A servo motor is fixed on the top surface of the main body of the dissolving water tank. The output end of the servo motor extends into the main body of the dissolving water tank and a transmission gear is fixed thereon. The transmission gear meshes with the inner side of the rotating ring.

[0008] Furthermore, a coil fixing frame is fixed inside the main body of the dissolving water tank, and a coil heater is fixed on the coil fixing frame.

[0009] Furthermore, the main body of the dissolving water tank is made of stainless steel, and a protective bottom cover that works in conjunction with the air agitator is fixed to the bottom of the main body of the dissolving water tank.

[0010] Furthermore, the four cleaning plates are fixed at equal intervals to the bottom of the rotating ring, and the bottom of the cleaning plates is attached to the bottom of the interior of the dissolving water tank body.

[0011] Furthermore, the coil heater is connected to a steam inlet and a steam outlet at both ends, and both the steam inlet and the steam outlet extend out of the top of the main body of the dissolving water tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, calcium carbonate sludge is fed into the dissolving water tank through the sludge inlet, and water is then injected into the dissolving water tank through the water inlet. Air is then injected into the dissolving water tank through the air inlet of the air agitator via the cleaning plate, causing carbon dioxide in the air to react with calcium carbonate to generate soluble calcium bicarbonate. At the same time, the temperature of the calcium carbonate suspension is increased by the coil heater to achieve maximum dissolution of calcium carbonate. Through the redissolution of calcium carbonate sludge, it can be directly used as makeup water for the desulfurization system or enter the calcium carbonate crystallization and granulation system for recrystallization to generate granular calcium carbonate. At the same time, a large amount of carbon dioxide is absorbed, realizing the resource recycling of waste calcium carbonate sludge.

[0014] 2. In this utility model, a rotating ring is installed inside the main body of the dissolving water tank, and a cleaning plate is installed at the bottom of the rotating ring. When the inside of the main body of the dissolving water tank needs to be cleaned, the servo motor is started, which drives the transmission gear to rotate. The transmission gear then drives the rotating ring to rotate, thereby causing the rotating ring to drive the cleaning plate to scrape off the impurities attached to the inner wall of the main body of the dissolving water tank, thus making the cleaning of the inner wall of the main body of the dissolving water tank more convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 The above is a three-dimensional schematic diagram of the structure viewed from below after opening in the embodiment shown.

[0018] Figure 3 yes Figure 1 The above is a three-dimensional schematic diagram of the heating component structure in the embodiment shown.

[0019] Figure 4 yes Figure 1 The illustrated embodiment shows a three-dimensional structural diagram of the cleaning component.

[0020] The meanings of the labels in the attached diagram are as follows: 1. Main body of the dissolving water tank; 2. Mud filling port; 3. Water inlet; 4. Drain outlet; 5. Air box; 6. Air agitator; 7. Air inlet; 8. Coil fixing bracket; 9. Coil heater; 10. Steam inlet; 11. Steam outlet; 12. Cleaning plate; 13. Servo motor; 14. Transmission gear; 15. Rotating ring. Detailed Implementation

[0021] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A calcium carbonate sludge redissolving device includes a dissolving tank body 1, a sludge inlet 2 and a water inlet 3 on the top surface of the dissolving tank body 1, a drain outlet 4 on the lower outer side of the dissolving tank body 1, an air agitator 6 fixed to the bottom of the dissolving tank body 1, a bellows 5 on the outer side of the dissolving tank body 1, the air outlet of the bellows 5 being connected to the interior of the air agitator 6, and several air inlets 7 extending into the interior of the dissolving tank body 1 on the top surface of the air agitator 6. The dissolving tank body 1 is made of stainless steel, and a protective bottom cover that cooperates with the air agitator 6 is fixed to the bottom of the dissolving tank body 1, so that carbon dioxide in the air reacts with calcium carbonate to generate soluble calcium bicarbonate.

[0023] Specifically, a coil fixing frame 8 is fixed inside the main body 1 of the dissolving water tank, and a coil heater 9 is fixed on the coil fixing frame 8. The two ends of the coil heater 9 are respectively connected to a steam inlet 10 and a steam outlet 11. Both the steam inlet 10 and the steam outlet 11 extend out of the top of the main body 1 of the dissolving water tank, so that the coil heater 9 raises the temperature of the calcium carbonate suspension and achieves maximum dissolution of calcium carbonate.

[0024] As an optimization solution, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a rotating ring 15 is rotatably connected to the upper part of the main body 1 of the dissolving water tank. Four cleaning plates 12 are fixed at the bottom of the rotating ring 15. A servo motor 13 is fixed on the top surface of the main body 1 of the dissolving water tank. The output end of the servo motor 13 extends into the interior of the main body 1 of the dissolving water tank and a transmission gear 14 is fixed thereon. The transmission gear 14 meshes with the inner side of the rotating ring 15, so that the cleaning plates 12 clean the inner wall of the main body 1 of the dissolving water tank.

[0025] Specifically, four cleaning plates 12 are fixed at equal intervals to the bottom of the rotating ring 15, and the bottom of the cleaning plates 12 are attached to the bottom of the interior of the dissolving water tank body 1, so that the cleaning surface of the cleaning plates 12 is more comprehensive.

[0026] Working principle: Calcium carbonate mud is added into the dissolving tank body 1 through mud inlet 2, and water is injected into the dissolving tank body 1 through water inlet 3, thus forming a calcium carbonate suspension. Air is then introduced into the air agitator 6 through the bellows 5, and then into the dissolving tank body 1 through several air inlets 7 on the air agitator 6. Carbon dioxide in the air reacts with calcium carbonate to generate soluble calcium bicarbonate. At the same time, the temperature of the calcium carbonate suspension is increased by the coil heater 9 to achieve maximum dissolution of calcium carbonate. When the inside of the dissolving tank body 1 needs to be cleaned, the servo motor 13 is started, which drives the transmission gear 14 to rotate. The transmission gear 14 then drives the rotating ring 15 to rotate. At this time, the rotating ring 15 drives the cleaning plate 12 to rotate, so that the cleaning plate 12 cleans the inner wall of the dissolving tank body 1.

[0027] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A calcium carbonate white mud redissolving device comprising a dissolving water bucket main body (1), characterized in that: The top surface of the dissolving water bucket body (1) is provided with a mud adding port (2), the top surface of the dissolving water bucket body (1) is provided with a water inlet (3), the lower side of the outer side of the dissolving water bucket body (1) is provided with a liquid discharge port (4), the bottom end of the dissolving water bucket body (1) is fixed with an air agitator (6), the outer side of the dissolving water bucket body (1) is provided with a wind box (5), the air outlet of the wind box (5) is in communication with the inside of the air agitator (6), and the top surface of the air agitator (6) is provided with a plurality of air inlets (7) extending into the inside of the dissolving water bucket body (1).

2. The calcium carbonate white mud redissolving device according to claim 1, characterized in that: The inside of the dissolving water bucket body (1) is rotatably connected with a rotating ring (15), the bottom end of the rotating ring (15) is fixed with four cleaning plates (12), the top surface of the dissolving water bucket body (1) is fixed with a servo motor (13), the output end of the servo motor (13) extends into the inside of the dissolving water bucket body (1) and is fixed with a transmission gear (14), and the transmission gear (14) is meshed and connected with the inner side surface of the rotating ring (15).

3. The calcium carbonate white mud redissolution device of claim 1, wherein: The inside of the dissolving water bucket body (1) is fixed with a coil fixing frame (8), and the coil fixing frame (8) is fixed with a coil heater (9).

4. The calcium carbonate white mud redissolution device of claim 1, wherein: The material of the dissolving water bucket body (1) is stainless steel, and the bottom end of the dissolving water bucket body (1) is fixed with a protective bottom cover matched with the air agitator (6).

5. The calcium carbonate white mud redissolution device of claim 2, wherein: The four cleaning plates (12) are fixed equidistantly at the bottom end of the rotating ring (15), and the bottom end of the cleaning plate (12) is attached to the bottom end of the inside of the dissolving water bucket body (1).

6. The calcium carbonate white mud redissolution device of claim 3, wherein: The two ends of the coil heater (9) are respectively communicated with a steam inlet (10) and a steam outlet (11), and the steam inlet (10) and the steam outlet (11) extend out of the top end of the dissolving water bucket body (1).

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