A granulating device for recycling polyacrylamide fine powder

Abstract

The utility model discloses a kind of polyacrylamide fine powder recycling's granulating device, belong to the technical field of granulator.The device includes: support structure, driving mechanism, forming system and auxiliary assembly;The forming system includes tank, tank is provided with feed inlet, the auxiliary assembly is arranged in the feed inlet, the auxiliary assembly includes water inlet pipe, annular pipe is fixedly connected after water inlet pipe passes through feed inlet cavity wall, nozzle is fixedly connected on annular pipe;The center of tank is provided with rotating shaft, rotating shaft is fixedly connected with helical blade, rotating shaft both ends are supported with tank through bearing and are respectively connected with pulley and granulating plate, granulating plate outer ring is fixedly connected with tank, forming hole is set on granulating plate, and one side is fixed with blade.The device is sprayed atomized water by being positioned in feed inlet, so that powder is premoistened before entering granulating chamber, and fine powder recycling rate and granule forming uniformity are improved.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and in particular to a granulation device for recycling and reusing polyacrylamide fine powder. Background Technology

[0002] Polyacrylamide is a common polymeric flocculant widely used in water treatment, papermaking, mining, and oilfield extraction. Its preparation process usually requires granulation equipment to process powdered raw materials into granular products for easy transportation, storage, and addition.

[0003] Existing polyacrylamide granulation equipment generally consists of a feeding mechanism, a granulation chamber, a screw assembly, an extrusion die, and a pelletizing device. Powdered raw materials enter the granulation chamber through a hopper, are conveyed, mixed, and compacted under the action of the screw, and then extruded into strips through the die. The pelletizing device then cuts the strips into uniformly sized particles, which are finally dried and cooled to obtain the finished product. In this type of equipment, the powdered raw materials are mostly dry powder that enters the granulation chamber directly. The mechanical extrusion and friction of the screw generate a certain temperature and pressure, which is then combined with downstream spray humidification or the addition of external binders to assist in nucleation and densification. However, this downstream wetting method has certain limitations: fine powder is prone to uneven dispersion in the initial stage of entering the granulation chamber, and some particles fail to fully contact the binder, resulting in slow nucleation and uneven coating, thus affecting the stability of the granules.

[0004] Because existing equipment lacks a structural design for pre-wetting the raw materials at the feed inlet, the powder remains dry and loose before entering the screw, making it prone to accumulation, scattering, and uneven mixing. This ultimately results in low fine powder utilization, large fluctuations in particle quality, and dust pollution. Therefore, existing polyacrylamide granulation equipment still needs improvement in terms of fine powder utilization and particle uniformity. Utility Model Content

[0005] This invention provides a granulation device for recycling and reusing polyacrylamide fine powder, which can solve the problems in the prior art where the powder is not sufficiently wetted before entering the granulation chamber, resulting in uneven nucleation and unstable particle quality.

[0006] A granulation device for recycling and reusing polyacrylamide fine powder includes: Support structure, drive mechanism, forming system and auxiliary components; The forming system includes a tank body with a feed inlet. An auxiliary component is provided inside the feed inlet. The auxiliary component includes a water inlet pipe, which passes through the wall of the feed inlet cavity and is fixedly connected to an annular pipe. A nozzle is fixedly connected to the annular pipe.

[0007] Preferably, the support structure includes a support leg, a support block is fixedly connected to the support leg, and the support block is fixedly connected to the tank body.

[0008] Preferably, the support leg is provided with a drive mechanism, the drive mechanism includes a support plate, a motor is fixedly connected to the support plate, and a first pulley is fixedly connected to the output shaft of the motor.

[0009] Preferably, a rotating shaft is provided at the center of the tank, and a spiral blade is fixedly connected to the rotating shaft.

[0010] Preferably, a second pulley is fixedly connected to one end of the rotating shaft, and a first bearing is provided at that end. The inner ring of the first bearing is interference-fitted with the rotating shaft, and its outer ring is interference-fitted with the tank body.

[0011] Preferably, a second bearing is fixedly connected to the end of the rotating shaft away from the feed inlet, and a granulation plate is interference-fitted to the outer ring of the second bearing. The outer ring of the granulation plate is fixedly connected to the tank body.

[0012] Preferably, the granulation plate has forming holes.

[0013] Preferably, a fixing ring is also provided on one side of the granulation plate, the fixing ring is fixedly connected to the rotating shaft, and a blade is fixedly connected to the fixing ring.

[0014] Preferably, a support ring is fitted onto the annular tube, and a connecting plate is fixedly connected to the support ring. The connecting plate is fixedly connected to the inner wall of the feed inlet.

[0015] Preferably, a sealing cap is provided at the connection between the water inlet pipe and the wall of the feed inlet cavity.

[0016] Beneficial effects: This utility model is equipped with an auxiliary component at the feed inlet. The auxiliary component forms an atomized water curtain through the water inlet pipe, the annular pipe and the nozzle, so that the polyacrylamide fine powder entering the tank is pre-wetted before entering the granulation chamber, thereby improving the dispersion state of the powder, promoting the rapid nucleation and uniform coating of the fine powder, effectively solving the problems of slow nucleation and unstable particle quality caused by the direct entry of dry powder into the granulation chamber in the prior art, and improving the recycling rate of fine powder and the stability of particle forming.

[0017] Furthermore, in this invention, the pelletizing plate and the pelletizing blade assembly are driven by a shared rotating shaft, and extrusion and cutting are completed simultaneously, avoiding the complex transmission structure of traditional equipment that requires separate driving of the pelletizing device. Attached Figure Description

[0018] Figure 1 A perspective view of a granulation device for recycling and reusing polyacrylamide fine powder provided by this utility model; Figure 2A cross-sectional view of a granulation device for recycling and reusing polyacrylamide fine powder provided by this utility model; Figure 3 A schematic diagram of the auxiliary component structure of a granulation device for recycling and reusing polyacrylamide fine powder provided by this utility model; Figure 4 For the present utility model Figure 2 A magnified view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the drive mechanism of a granulation device for recycling and reusing polyacrylamide fine powder, provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 100. Support structure; 101. Support leg; 102. Support block; 200. Drive mechanism; 201. Support plate; 202. Motor; 203. First pulley; 204. Second pulley; 205. Belt; 300. Forming system; 301. Rotating shaft; 302. Spiral blade; 303. First bearing; 304. Second bearing; 305. Retaining ring; 306. Blade; 307. Tank body; 308. Feed inlet; 309. Granulating plate; 310. Forming hole 400. Auxiliary components; 401. Water inlet pipe; 402. Sealing cap; 403. Ring pipe; 404. Support ring; 405. Connecting plate; 406. Nozzle. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1 to 5 As shown in the figure, a granulation device for recycling and reusing polyacrylamide fine powder provided by this utility model includes a support structure 100, on which a forming system 300 and a driving mechanism 200 are provided, and an auxiliary component 400 is provided inside the forming system 300.

[0022] The support structure 100 includes a support leg 101, a support block 102 is fixedly connected to the support leg 101, and a forming system 300 is provided above the support block 102. The cooperation between the support leg 101 and the support block 102 enables the forming system 300 to stably bear the load.

[0023] The drive mechanism 200 includes a support plate 201, which is fixedly connected to the support leg 101. A motor 202 is fixedly connected to the support plate 201. A first pulley 203 is fixedly connected to the output shaft of the motor 202. The first pulley 203 is connected to a second pulley 204 via a belt 205. The motor 202 drives the rotating shaft 301 stably through the pulley transmission, ensuring smooth and reliable power transmission.

[0024] The forming system 300 includes a tank 307. A feed inlet 308 is located on the upper part of the tank 307 near the motor 202. A rotating shaft 301 passes through the center of the inlet 307. A spiral blade 302 is fixedly connected to the rotating shaft 301 for pushing and compacting the powder. A second pulley 204 is fixedly connected to the rotating shaft 301 near the drive mechanism 200. A first bearing 303 is also provided at this end of the rotating shaft 301. The inner ring of the first bearing 303 is interference-fitted with the rotating shaft 301, and its outer ring is connected to the tank 307. 07. An interference fit is used to support and position one end of the rotating shaft 301. The other end of the rotating shaft 301 is interference-fitted with a second bearing 304. A granulation plate 309 is fixedly connected to the outer ring of the second bearing 304. A forming hole 310 is provided on the granulation plate 309 so that the powder is extruded into strips under pressure. A fixing ring 305 is provided on the outer side of the granulation plate 309. A blade 306 is fixedly connected to the fixing ring 305. The blade 306 rotates synchronously with the rotating shaft 301 to cut the extruded strip material and keep the particle length consistent.

[0025] The auxiliary component 400 includes a water inlet pipe 401, which passes through the wall of the feed inlet 308 and is fixedly connected to an annular pipe 403. The annular pipe 403 can evenly distribute water supply to improve the powder wetting effect. A support ring 404 is fitted on the annular pipe 403, and a connecting plate 405 is fixedly connected to the support ring 404. The other end of the connecting plate 405 is fixedly connected to the inner wall of the feed inlet 308, so that the annular pipe 403 can be stably positioned in the feed inlet 308. A nozzle 406 is fixedly connected to the annular pipe 403, which sprays atomized water mist toward the powder, so that the powder is evenly wetted when it enters the tank 307, improving the uniformity of subsequent nucleation and granulation. A sealing cap 402 is fitted on the outside of the water inlet pipe 401, and the sealing cap 402 is fixedly connected to the outer wall of the feed inlet 308 to seal the connection and prevent powder leakage.

[0026] Working principle: such as Figures 1 to 5As shown in the embodiment of this utility model, the granulation device for recycling and reusing polyacrylamide fine powder, in use, the raw material powder and the recycled fine powder enter the tank 307 through the feed inlet 308. At the same time, the water inlet pipe 401 introduces external water supply, and the water flows through the annular pipe 403 and is sprayed out by the nozzles 406 evenly distributed on it to form atomized water mist, which directly acts on the falling powder, so that the powder is pre-wetted before entering the spiral blade 302, thereby enhancing the adhesion between the powder particles.

[0027] After the motor 202 starts, it drives the output shaft to rotate. The motor 202 drives the rotating shaft 301 through the first pulley 203, the belt 205 and the second pulley 204. The rotating shaft 301 drives the spiral blades 302 to rotate, so that the powder entering the tank 307 is gradually transported to the other end of the tank 307 under the push of the spiral blades 302, and is continuously mixed, compacted and nucleated during the rotation and propulsion process.

[0028] When the material is conveyed to the end of the tank 307, it is squeezed through the forming holes 310 on the granulation plate 309 under pressure and extruded into strips from the outer surface of the granulation plate 309. Subsequently, the blades 306 fixed on the fixing ring 305 rotate synchronously with the rotating shaft 301 to cut the extruded material strips, so that the material is immediately divided into uniformly sized particles.

[0029] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A granulation device for recycling and reusing polyacrylamide fine powder, characterized in that, The system includes a forming system (300), which includes a tank (307) and a feed inlet (308) on the tank (307). An auxiliary component (400) is provided inside the feed inlet (308). The auxiliary component (400) includes a water inlet pipe (401). The water inlet pipe (401) passes through the cavity wall of the feed inlet (308) and is fixedly connected to an annular pipe (403). A nozzle (406) is fixedly connected to the annular pipe (403).

2. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 1, characterized in that, It also includes a support structure (100), which includes a support leg (101) and a support block (102) fixedly connected to the support leg (101). The support block (102) is fixedly connected to the tank body (307).

3. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 2, characterized in that, The support leg (101) is provided with a drive mechanism (200), the drive mechanism (200) includes a support plate (201), a motor (202) is fixedly connected to the support plate (201), and the output shaft of the motor (202) is fixedly connected to a first pulley (203).

4. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 1, characterized in that, A rotating shaft (301) is inserted through the center of the tank (307), and a spiral blade (302) is fixedly connected to the rotating shaft (301).

5. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 4, characterized in that, One end of the rotating shaft (301) is fixedly connected to a second pulley (204), and a first bearing (303) is provided at the other end. The inner ring of the first bearing (303) is interference-fitted with the rotating shaft (301), and its outer ring is interference-fitted with the tank body (307).

6. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 4, characterized in that, The rotating shaft (301) is fixedly connected to a second bearing (304) at the end away from the feed inlet (308). The outer ring of the second bearing (304) is interference-fitted with a granulation plate (309). The outer ring of the granulation plate (309) is fixedly connected to the tank body (307).

7. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 6, characterized in that, The granulation plate (309) has forming holes (310).

8. The granulation device for recycling and reusing polyacrylamide fine powder as described in claim 6, characterized in that, A fixing ring (305) is also provided on one side of the granulation plate (309). The fixing ring (305) is fixedly connected to the rotating shaft (301), and a blade (306) is fixedly connected to the fixing ring (305).

9. A granulation device for recycling and reusing polyacrylamide fine powder as described in claim 1, characterized in that, A support ring (404) is fitted on the annular tube (403), and a connecting plate (405) is fixedly connected to the support ring (404). The connecting plate (405) is fixedly connected to the inner wall of the feed port (308).

10. A granulation device for recycling and reusing polyacrylamide fine powder as described in claim 1, characterized in that, A sealing cap (402) is provided at the connection between the water inlet pipe (401) and the cavity wall of the feed inlet (308).

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