Preparation device and method of dechlorination agent

Abstract

The present application relates to the technical field of dechlorination agent preparation, and discloses a preparation device and a preparation method of a dechlorination agent, which comprises a stirring kettle, four paddles arranged in the stirring kettle, the paddles being capable of rotating around the stirring kettle axis and self-rotating, a cross arranged in the stirring kettle, the cross being capable of vertically sliding relative to the stirring kettle, four end portions of the cross being provided with fixing rings and rotating rings, the rotating rings being rotationally assembled in the fixing rings and sleeved on the paddles, two water distribution rollers and two scrapers being arranged in the stirring kettle and spaced apart on the fixing rings outside the paddles, the water distribution rollers being fixedly connected to the corresponding rotating rings, and the scrapers being fixedly connected to the corresponding fixing rings.

Description

Technical Field

[0001] This invention relates to the field of dechlorination agent preparation technology, specifically to a dechlorination agent preparation apparatus and preparation method. Background Technology

[0002] In the industrial production sector, chlorine-containing compounds are widely present in chemical reaction systems, industrial wastewater, and gas exhaust. Their residues or emissions can cause multiple technical and environmental problems. Therefore, dechlorination has become an indispensable key link in industries such as petrochemicals, coal chemicals, water treatment, and environmental governance. The research and development and large-scale preparation of efficient dechlorination agents are the core support for achieving deep dechlorination.

[0003] The ferrous sulfate-calcium oxide-palladium clay system is used as a raw material for the preparation of room temperature dechlorination agents. During the mixing process, deionized water needs to be added to meet the subsequent molding requirements, and the uniformity of the moisture content directly determines the activity and structural stability of the dechlorination agent.

[0004] However, in current mainstream preparation processes, deionized water is mostly added by top spraying or side dripping. The water can only cover the surface of the raw material and requires long-term stirring to penetrate into the micropores inside the powder. More importantly, calcium oxide will undergo a violent exothermic reaction when it comes into contact with water. The heat of the reaction can easily cause the surface moisture to evaporate rapidly. In order to ensure that the raw material reaches the target moisture content, the operator needs to inject excessive amounts of deionized water to compensate for the evaporation loss, which increases production energy consumption and cost. Summary of the Invention

[0005] This invention provides an apparatus and method for preparing a dechlorinating agent, aiming to solve the problems of cumbersome deionized water addition processes and water evaporation caused by the exothermic reaction between deionized water and calcium oxide in related technologies.

[0006] The present invention provides a dechlorination agent preparation apparatus, comprising a stirred tank, wherein the stirred tank is provided with four blades that are capable of rotating around the axis of the stirred tank and rotating on their own axis.

[0007] The interior of the mixing vessel is also equipped with a cross, which can slide vertically relative to the mixing vessel. Each of the four ends of the cross is equipped with a fixed ring and a rotating ring, and the rotating ring is rotatably assembled inside the fixed ring and sleeved on the outside of the blade.

[0008] The mixing tank is also equipped with two water distribution rollers and two scrapers, which are spaced apart on the fixed rings outside the blades. The water distribution rollers are fixedly connected to the corresponding rotating rings, and the scrapers are fixedly connected to the corresponding fixed rings.

[0009] The cross-shaped structure can drive two water distribution rollers and two scrapers to slide vertically into the raw material interior relative to the mixing tank. The paddle can drive the two water distribution rollers and two scrapers to rotate around the axis of the mixing tank and rotate on their own axis, so that the water distribution rollers can crush the raw material and inject water.

[0010] Preferably, the top of the mixing vessel is provided with a vessel lid, a right-angle motor is fixedly connected to the top of the vessel lid, a turntable is fixedly connected to the drive end of the right-angle motor, and a rotating frame is fixedly connected to the circumference of the turntable, the rotating frame including four protruding ends.

[0011] Preferably, an external gear ring is fixedly connected to the inner wall of the top of the vessel lid, and four internal gears are meshed on the inner side of the external gear ring. The internal gears are located above the rotating frame, and straight rods are fixedly connected to the bottom of each of the four internal gears. The four straight rods are respectively inserted through the four protruding ends and fixedly connected to the blades.

[0012] Preferably, a pusher plate is provided on the front side of the water distribution roller in the revolution direction, and the pusher plate is fixedly connected to the fixed ring corresponding to the water distribution roller. There is a gap between the water distribution roller and the inner wall of the mixing tank, and the pusher plate can guide the raw material into the gap.

[0013] Preferably, a support is provided on the outside of the mixing vessel, the mixing vessel is fixedly mounted on the support, a base is fixedly connected to the bottom of the support, a plurality of mounting ears are arranged in a ring array on the outer circumference of the mixing vessel, the mounting ears can be fixedly connected to the support, and a feed port is provided on the side of the mixing vessel.

[0014] Preferably, the interior of the mixing vessel is fixedly connected to a boss, and a cylinder is installed inside the boss. A push rod is fixedly connected to the telescopic end of the cylinder, and a cross is rotatably mounted on the push rod. An annular mixing chamber is formed between the outer periphery of the boss and the inner wall of the mixing vessel.

[0015] Preferably, the mixing vessel has a cooling chamber inside its wall, through which a circulating low-temperature medium can be introduced. A fixing plate is fixedly connected inside the mixing vessel, and a boss is fixedly connected to the top of the fixing plate. An annular butterfly valve is also provided outside the fixing plate, located at the bottom of the mixing chamber.

[0016] Preferably, the bottom of the mixing vessel is provided with a hopper, the bottom of the hopper is provided with an auger, the end of the auger away from the hopper is provided with a heating module, and a forming mold is installed on the heating module.

[0017] A method for preparing a dechlorination agent includes the following steps:

[0018] S1: The dechlorination agent raw materials are added to the mixing tank in proportion. The paddle is driven by a right-angle motor to mix the raw materials. The raw materials are crushed and water is injected by the water distribution roller to make them evenly adhere to the inner cavity of the mixing tank. The raw materials are cooled by the cooling chamber. The scraper simultaneously scrapes off and breaks the cooled raw materials to ensure that the water and raw materials are fully integrated to form a uniform wet material.

[0019] S2: Wet material enters the hopper through the annular butterfly valve, then enters the heating module after passing through the hopper and the auger. The hopper can temporarily store some wet material to balance the discharge speed of the mixing tank and the conveying speed of the auger, avoiding material interruption or blockage.

[0020] S3: The wet material enters the heating module, which provides a suitable temperature to remove excess moisture from the wet material. It is then squeezed and shaped through a specific cavity structure inside the molding die to form a dechlorinating agent product of uniform specifications. After the molded product is discharged from the discharge end of the molding die, it is cooled and collected as the finished dechlorinating agent.

[0021] The beneficial effects of this invention are:

[0022] 1. During use, the water distribution roller rotates on its own axis and revolves around the sun. Through crushing, deionized water is directly pressed into the micropores of powder raw materials such as attapulgite clay and calcium oxide under mechanical extrusion. This avoids the problem of water remaining only on the surface of the raw materials caused by traditional top spraying methods, reduces stirring time, ensures consistent moisture content inside and outside the raw materials, breaks up particle agglomeration, and the cooling chamber provided in the mixing vessel wall removes heat from the mixing chamber in real time, effectively inhibiting the evaporation of surface moisture due to high temperature.

[0023] Second, the scraper can remove and break up the compacted raw material layer on the inner wall of the mixing tank, so that all raw materials can circulate into the core area of ​​the mixing chamber. This avoids the situation where the adhesive layer remains on the inner wall of the mixing tank for a long time and cannot participate in subsequent mixing. In addition, the shearing action generated by the rolling of the water distribution roller can destroy the bundle structure of attapulgite clay, promote the dissociation of attapulgite and produce thixotropy in advance, eliminate the aging process, and shorten the production cycle. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the back of the present invention.

[0026] Figure 3 This is a frontal cross-sectional structural schematic diagram of the present invention.

[0027] Figure 4 This is a schematic diagram of the stirring assembly of the present invention.

[0028] Figure 5 This is a schematic diagram of the lifting component of the present invention.

[0029] Figure 6 yes Figure 5 The enlarged schematic diagram of part A is shown.

[0030] Figure 7This is a schematic diagram of the internal structure of the stirring vessel of the present invention.

[0031] Figure 8 This is a cross-sectional view of the stirred tank of the present invention.

[0032] Figure 9 This is a schematic diagram of the hopper and auger of the present invention.

[0033] Figure label:

[0034] 10. Base; 11. Bracket; 20. Mixing vessel; 201. Mounting ear; 202. Feed inlet; 21. Vessel lid; 211. Exhaust valve; 22. Boss; 221. Push rod; 23. Cooling chamber; 24. Fixing plate; 25. Annular butterfly valve; 30. Drive assembly; 301. Right-angle motor; 302. Turntable; 303. Rotating frame; 31. Mixing assembly; 311. External gear ring; 312. Internal gear; 313. Straight rod; 3131. Paddle; 40. Water distribution assembly; 41. Lifting assembly; 411. Cross; 412. Fixing ring; 413. Rotating ring; 42. Water distribution roller; 43. Push plate; 44. Scraper; 50. Hopper; 60. Screwdriver; 70. Molding assembly; 701. Heating module; 702. Molding mold. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figures 1 to 9 As shown, a dechlorination agent preparation apparatus of the present invention includes a support 11, a stirring tank 20, a drive assembly 30, a stirring assembly 31, a water distribution assembly 40, a hopper 50, an auger 60, and a forming assembly 70. The stirring tank 20 is fixedly mounted on the support 11. The dechlorination agent raw materials are added to the stirring tank 20 in proportion. The stirring tank 20 provides a place for stirring and mixing the dechlorination agent raw materials. The drive assembly 30 is located above the stirring tank 20, and the stirring assembly 31 is located inside the stirring tank 20. The drive assembly 30 can drive the stirring... The component 31 rotates relative to the mixing vessel 20 to mix the raw materials. The water distribution component 40 is set on the mixing component 31. The hopper 50 is fixedly installed below the mixing vessel 20. The auger 60 is located below the hopper 50. The forming component 70 is located at the end of the auger 60 away from the hopper 50. The water distribution component 40 can evenly distribute deionized water inside the raw materials. The mixed raw materials enter the auger 60 through the hopper 50 and are then shaped by the forming component 70. After cooling, a complete dechlorination agent product is formed.

[0037] like Figures 1 to 2As shown, a base 10 is fixedly connected to the bottom of the bracket 11. The base 10 provides stable support for the device and prevents the device from shaking or shifting during operation.

[0038] like Figures 1 to 4 , Figure 7 as well as Figure 8 As shown, a plurality of mounting ears 201 are arranged in a ring array on the outer peripheral surface of the mixing vessel 20. The mounting ears 201 can be fixedly connected to the bracket 11 by means of connectors (such as bolts) to fix the mixing vessel 20 on the bracket 11. The side of the mixing vessel 20 is provided with a feed port 202 for providing a feeding channel for the dechlorination agent raw material.

[0039] The top of the mixing vessel 20 is provided with a vessel cover 21, and a vent valve 211 is provided on the vessel cover 21. The vent valve 211 can be connected to a gas storage tank (not shown) to discharge the gas generated during the raw material mixing process.

[0040] The mixing vessel 20 is fixedly connected to a boss 22. A cylinder (not shown) is installed inside the boss 22. A push rod 221 is fixedly connected to the telescopic end of the cylinder. When the cylinder drives the push rod 221 to slide vertically, it can drive the water distribution component 40 to slide synchronously. A mixing chamber is formed between the inner wall of the mixing vessel 20 and the outer peripheral surface of the boss 22. After the raw material is introduced into the mixing vessel 20, it enters the mixing chamber for mixing.

[0041] The stirred tank 20 has a cooling chamber 23 inside its wall, which can be circulated with a low-temperature medium (such as calcium chloride aqueous solution, ethylene glycol aqueous solution, etc.) to cool down the raw materials when they are mixed and heated inside the stirred tank 20.

[0042] A fixed plate 24 is fixedly connected inside the mixing tank 20, and a boss 22 is fixedly connected to the top of the fixed plate 24. An annular butterfly valve 25 is also provided on the outside of the fixed plate 24, located at the bottom of the mixing chamber. Opening the annular butterfly valve 25 allows the uniformly mixed raw materials to enter the hopper 50, preparing for subsequent conveying to the molding component 70 via the auger 60. When mixing is not completed or feeding needs to be paused, closing the annular butterfly valve 25 can directly cut off the passage and prevent unmixed raw materials from entering the downstream process.

[0043] like Figures 4 to 7 As shown, the drive assembly 30 includes a right-angle motor 301, a turntable 302, and a rotating frame 303. The right-angle motor 301 is fixedly installed on the top of the vessel cover 21. The turntable 302 is fixedly connected to the drive end of the right-angle motor 301. The rotating frame 303 is fixedly connected to the turntable 302 and has four protruding ends. Both the turntable 302 and the rotating frame 303 are located inside the stirred vessel 20. The right-angle motor 301 can drive the turntable 302 and the rotating frame 303 to rotate relative to the stirred vessel 20, thereby driving the stirring assembly 31 to rotate to stir the dechlorination agent raw material.

[0044] The stirring assembly 31 includes an external gear ring 311, an internal gear 312, and a straight rod 313. The external gear ring 311 is fixedly connected to the inner top wall of the lid 21. Four internal gears 312 are arranged in a ring array inside the external gear ring 311 and mesh with it. The internal gear 312 is located above the rotating frame 303. A straight rod 313 is fixedly connected to the bottom of the internal gear 312. The straight rod 313 extends into the stirring chamber through its extended end. A blade 3131 is fixedly connected to the outer circumferential surface of the straight rod 313 below the rotating frame 303. When the rotating frame 303 rotates, it drives the straight rod 313 to rotate in the stirring chamber. Through the meshing of the external gear ring 311 and the internal gear 312, the straight rod 313 and the blade 3131 rotate while revolving and stirring, thereby making the raw materials more evenly mixed.

[0045] like Figures 4 to 6 As shown, the water distribution assembly 40 includes a lifting assembly 41, a water distribution roller 42, a push plate 43, and a scraper 44. The lifting assembly 41 can slide vertically under the drive of the push rod 221. When it is necessary to introduce deionized water into the raw material, it drives the water distribution roller 42, the push plate 43, and the scraper 44 to slide synchronously into the raw material.

[0046] The lifting assembly 41 includes a cross 411, a fixed ring 412, and a rotating ring 413. The cross 411 is rotatably mounted on the end of the push rod 221. The fixed ring 412 has four rings and is fixedly connected to the four ends of the cross 411. The rotating ring 413 is rotatably connected to the inside of the fixed ring 412 and is sleeved on the outside of the blade 3131. When the push rod 221 lifts, it can drive the cross 411, the fixed ring 412, and the rotating ring 413 to lift synchronously. When the blade 3131 rotates, it can drive the rotating ring 413 to rotate inside the fixed ring 412.

[0047] Two water distribution rollers 42 and two scrapers 44 are provided, spaced apart on the fixing rings 412 outside the four straight rods 313. The water distribution roller 42 is slidably mounted on the blades 3131 and fixedly connected to the corresponding rotating rings 413, so that the water distribution roller 42 follows the straight rods 313 in revolution and rotation. There is a certain gap between the outer circumference of the water distribution roller 42 and the inner wall of the mixing vessel 20. The push plate 43 is fixedly connected to the fixing ring 412 corresponding to the water distribution roller 42 and is located in front of the water distribution roller 42 in the revolution direction, which can guide the raw material to the gap between the water distribution roller 42 and the inner wall of the mixing vessel 20. The surface of the water distribution roller 42 is made of a porous material sintered from 316L stainless steel powder, and there are... The cavity can connect to high-pressure deionized water. Under pressure, the deionized water seeps out evenly from the numerous micropores on the surface of the water distribution roller 42, forming a water film. When the water distribution roller 42 rolls through the gap guided by the push plate 43, it will exert a huge squeezing force on the raw material, forcing water molecules into the micropores of attapulgite clay and calcium oxide. After the water distribution roller 42 compacts the raw material and injects water, the raw material will be evenly spread and adhered to the inner wall of the mixing tank 20. The deionized water reacts with calcium oxide and begins to generate heat. The cooling medium inside the cooling chamber 23 can carry away the heat generated by the deionized water and calcium oxide, preventing the deionized water from evaporating due to high temperature. The scraper 44 immediately scrapes off the compacted raw material, breaking it up and scattering it.

[0048] It should be noted that when adding deionized water, this dechlorination agent preparation device does not spray it onto the surface of the raw material, but rather forces it into the powder through the micropores of the water distribution roller 42 under mechanical pressure. The cooling chamber 23 can counteract the high-temperature evaporation caused by the exothermic reaction between deionized water and calcium oxide, eliminating the need for multiple water injection steps. In addition, after conventional mixing, the material is loose and requires a long aging period before entering the molding component 70 to develop viscosity. However, the water distribution roller 42 of this device crushes and uses shearing force to break the bundle structure of attapulgite, causing it to dissociate and inducing thixotropy in advance. When the material is discharged, it already has excellent plasticity and can be directly extruded and molded without aging.

[0049] like Figures 1 to 2 as well as Figure 9 As shown, the hopper 50 is located between the mixing vessel 20 and the auger 60. The feed end of the hopper 50 receives the raw material that has been mixed by the mixing vessel 20, and the discharge end transports the raw material into the auger 60. It can also temporarily store a certain amount of mixed raw material to balance the discharge speed of the mixing vessel 20 and the conveying speed of the auger 60.

[0050] The auger 60 is fixedly installed on the top of the base 10 and can stably and continuously transport the mixed dechlorination agent raw material from the upstream hopper 50 to the downstream molding component 70.

[0051] The forming component 70 includes a heating module 701 and a forming mold 702. The heating module 701 is fixedly installed at the end of the auger 60 away from the hopper 50, and the forming mold 702 is fixedly installed on the heating module 701. The forming module can be replaced according to actual production needs. The heating module 701 can remove excess moisture from the raw material by providing a suitable temperature. Through the specific cavity structure of the forming mold 702, the heated raw material is extruded into a product of uniform specifications to meet the requirements of subsequent storage, transportation and actual use.

[0052] A method for preparing a dechlorination agent includes the following steps:

[0053] S1: The powdered raw materials required for the dechlorination agent are fed into the mixing chamber through the feed inlet 202 on the side of the mixing vessel 20 according to the preset ratio. The vessel lid 21 is closed and sealed. The right-angle motor 301 is turned on to drive the turntable 302 and the rotating frame 303 to rotate. The rotating frame 303 drives the straight rod 313 to revolve in the mixing chamber. At the same time, the internal gear 312 at the top of the straight rod 313 meshes with the external gear ring 311 fixed on the inner wall of the vessel lid 21, so that the straight rod 313 and the outer peripheral blades 3131 rotate synchronously during the revolution, realizing the initial dispersion and mixing of the raw materials. The cylinder inside the boss 22 is activated to push the push rod 221 to lift. The components 41, water distribution roller 42, push plate 43, and scraper 44 slide vertically into the interior of the raw material. The water distribution roller 42 is connected to high-pressure deionized water. Under pressure, the porous structure of its 316L stainless steel surface seeps out a uniform water film. The push plate 43 guides the raw material to the gap between the water distribution roller 42 and the inner wall of the mixing tank 20. The water distribution roller 42 forces water molecules into the micropores of the raw material through rolling and squeezing. At the same time, the cooling chamber 23 is circulated with a low-temperature medium to remove the heat generated by the reaction of calcium oxide and water, thus preventing water evaporation. The scraper 44 simultaneously scrapes off and breaks up the compacted raw material, ensuring that the water and raw material are fully integrated to form a uniform wet material.

[0054] S2: After the raw materials and water are mixed evenly, open the annular butterfly valve 25 on the outside of the fixed plate 24 to let the wet material fall from the bottom of the mixing chamber into the lower hopper 50. Start the auger 60. Under the spiral conveying action of the auger 60, the wet material in the hopper 50 is stably conveyed from the discharge end of the hopper 50 to the downstream molding component 70. The hopper 50 can temporarily store some wet material to balance the discharge speed of the mixing tank 20 and the conveying speed of the auger 60, so as to avoid material interruption or blockage.

[0055] S3: After the wet material enters the molding component 70, it first passes through the heating module 701. The heating module 701 provides a suitable temperature to remove excess moisture from the wet material while ensuring that the material has plasticity. The heated material enters the molding mold 702 and is squeezed and shaped by the specific cavity structure inside the molding mold 702 to form a dechlorinating agent product of uniform specifications (such as columnar, granular, etc., the shape can be adjusted by changing the molding mold 702). After the molded product is discharged from the mold outlet, it is cooled and collected as the finished dechlorinating agent.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An apparatus for preparing a dechlorinating agent, comprising a stirred tank (20), characterized in that, The stirring vessel (20) is equipped with four blades (3131) inside, which can rotate around the axis of the stirring vessel (20) and rotate on their own axis; The interior of the stirring vessel (20) is also provided with a cross (411). The cross (411) can slide vertically relative to the stirring vessel (20). Each of the four ends of the cross (411) is provided with a fixed ring (412) and a rotating ring (413). The rotating ring (413) is rotatably assembled inside the fixed ring (412) and sleeved on the outside of the blade (3131). The interior of the mixing vessel (20) is also equipped with two water distribution rollers (42) and two scrapers (44), which are spaced apart on the fixing rings (412) outside the blades (3131). The water distribution rollers (42) are fixedly connected to the corresponding rotating rings (413), and the scrapers (44) are fixedly connected to the corresponding fixing rings (412). The cross (411) can drive the two water distribution rollers (42) and the two scrapers (44) to slide vertically into the raw material relative to the mixing tank (20). The paddle (3131) can drive the two water distribution rollers (42) and the two scrapers (44) to rotate around the axis of the mixing tank (20) and rotate on their own axis, so that the water distribution rollers (42) can crush the raw material and inject water. The stirring vessel (20) is fixedly connected to a boss (22), and a cylinder is installed inside the boss (22). A push rod (221) is fixedly connected to the telescopic end of the cylinder. A cross (411) is rotatably mounted on the push rod (221). An annular stirring chamber is formed between the outer periphery of the boss (22) and the inner wall of the stirring vessel (20). A push plate (43) is provided on the front side of the water distribution roller (42) in the revolution direction, and the push plate (43) is fixedly connected to the fixing ring (412) corresponding to the water distribution roller (42). There is a gap between the water distribution roller (42) and the inner wall of the mixing tank (20), and the push plate (43) can introduce the raw material into the gap.

2. The apparatus for preparing a dechlorinating agent according to claim 1, characterized in that, The top of the mixing vessel (20) is provided with a vessel cover (21), and a right-angle motor (301) is fixedly connected to the top of the vessel cover (21). A turntable (302) is fixedly connected to the drive end of the right-angle motor (301), and a rotating frame (303) is fixedly connected to the circumference of the turntable (302). The rotating frame (303) includes four protruding ends.

3. The apparatus for preparing a dechlorinating agent according to claim 2, characterized in that, An external gear ring (311) is fixedly connected to the inner wall of the top of the lid (21). Four internal gears (312) are meshed on the inner side of the external gear ring (311). The internal gears (312) are located above the rotating frame (303). Straight rods (313) are fixedly connected to the bottom of each of the four internal gears (312), and the four straight rods (313) are respectively inserted through the four protruding ends and fixedly connected to the blades (3131).

4. The apparatus for preparing a dechlorinating agent according to claim 1, characterized in that, The mixing vessel (20) is provided with a support (11) on the outside. The mixing vessel (20) is fixedly installed on the support (11). The bottom of the support (11) is fixedly connected to a base (10). Multiple mounting ears (201) are arranged in a ring array on the outer circumferential surface of the mixing vessel (20). The mounting ears (201) can be fixedly connected to the support (11). The side of the mixing vessel (20) is provided with a feed inlet (202).

5. The apparatus for preparing a dechlorinating agent according to claim 1, characterized in that, The mixing vessel (20) has a cooling chamber (23) inside its wall, through which a circulating low-temperature medium can be introduced. A fixing plate (24) is fixedly connected inside the mixing vessel (20), and a boss (22) is fixedly connected to the top of the fixing plate (24). An annular butterfly valve (25) is also provided outside the fixing plate (24) and is located at the bottom of the mixing chamber.

6. The apparatus for preparing a dechlorinating agent according to claim 5, characterized in that, The bottom of the mixing vessel (20) is provided with a hopper (50), and the bottom of the hopper (50) is provided with an auger (60). The end of the auger (60) away from the hopper (50) is provided with a heating module (701), and a molding die (702) is installed on the heating module (701).

7. A method for preparing a dechlorinating agent, applicable to the apparatus for preparing a dechlorinating agent as described in claim 6, characterized in that, Includes the following steps: S1: The dechlorinating agent raw material is added into the mixing tank (20) in proportion. The paddle (3131) is driven by the right angle motor (301) to mix the raw material. The raw material is crushed and water is injected by the water distribution roller (42) so that it is evenly adhered to the inner cavity of the mixing tank (20). It is cooled by the cooling chamber (23). The scraper (44) simultaneously scrapes off and crushes the cooled raw material to ensure that the water and raw material are fully integrated to form a uniform wet material. S2: Wet material enters the hopper (50) through the annular butterfly valve (25), and then enters the auger (60) and heating module (701). The hopper (50) can temporarily store some wet material to balance the discharge speed of the mixing tank (20) and the conveying speed of the auger (60) and avoid material interruption or blockage. S3: The wet material enters the heating module (701), which provides a suitable temperature to remove excess moisture from the wet material. The material is then squeezed and shaped through a specific cavity structure inside the molding die (702) to form a dechlorinating agent product of uniform specifications. After the molded product is discharged from the discharge end of the molding die (702), it is cooled and collected as the finished dechlorinating agent.

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