A new polycarboxylic acid water-reducing agent liquid drying device

Abstract

The utility model relates to a novel polycarboxylate water reducing agent liquid drying device belongs to water reducing agent processing technical field. Mainly include frame, drying tank, main stirring shaft, vice stirring shaft, electric heating tube and drive mechanism, drying tank is double -layer shell structure, interlayer spiral coiled electric heating tube, and main stirring shaft and vice stirring shaft cooperate through drive mechanism, and vice stirring shaft can realize positive -negative rotation, and the uniformity of liquid turning over is improved significantly, and vice stirring blade and vice stirring blade are set up in the reverse direction, form cross flow effect, further strengthen stirring efficiency, drying tank shell is wrapped and is kept warm shell cover, and the heat loss is reduced, and the heat energy utilization rate is improved. The utility model can effectively solve the existing drying device turning over not fully, the problem of uneven heating, greatly shorten drying time, improve drying efficiency and product quality.

Description

Technical Field

[0001] This utility model belongs to the field of water-reducing agent processing technology, specifically relating to a novel liquid drying device for polycarboxylate water-reducing agents. Background Technology

[0002] In the modern chemical industry, the production of polycarboxylate superplasticizer liquid has placed increasingly higher demands on product quality and efficiency, and drying treatment, as a key step, directly affects the final performance of the product and production efficiency.

[0003] Most existing drying devices employ a single stirring shaft and blades, achieving uniform heating and moisture evaporation of the liquid through stirring. However, this structure has a limited range of movement, resulting in insufficient internal agitation of the liquid and uneven heating in certain areas. This leads to longer drying times, affecting not only the drying effect but also significantly reducing overall production efficiency, making it difficult to meet the demands of the water-reducing agent processing industry for high-efficiency, high-quality production. Therefore, there is an urgent need for a drying device that can improve stirring uniformity and drying efficiency to solve the problems of insufficient agitation and uneven heating in existing technologies. Utility Model Content

[0004] To overcome the shortcomings of existing drying devices in the background art, which use a single stirring shaft and stirring blades, resulting in insufficient agitation and uneven heating of the liquid, thus affecting the drying effect and production efficiency of polycarboxylate superplasticizer liquid, this utility model provides a novel polycarboxylate superplasticizer liquid drying device. Through the coordinated operation of the main stirring shaft and the auxiliary stirring shaft, combined with the drive mechanism to realize the forward and reverse rotation of the auxiliary stirring shaft, the uniformity of liquid agitation is significantly improved. At the same time, the structural design of the electric heating tube spirally wound in the jacket ensures uniform heat distribution, thereby greatly shortening the drying time, improving drying efficiency and product quality, and meeting the needs of modern superplasticizer processing field for efficient and high-quality production.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A novel polycarboxylate superplasticizer liquid drying device mainly includes a frame, a drying tank, a sealing cover, a motor, a support frame, a main stirring shaft, a secondary stirring shaft, an electric heating tube, a temperature sensor, a controller, and a drive mechanism. The frame is equipped with a double-shell drying tank, with an inner and outer shell forming a sandwich layer. An electric heating tube is spirally wound inside the sandwich layer. The temperature sensor is embedded in the outer wall of the drying tank. The temperature sensor and the electric heating tube are electrically connected to the controller installed on the outer wall of the drying tank. A discharge port with a switch valve is provided at the bottom of the drying tank, and a disc-shaped support frame is provided inside near the top. The main stirring shaft is positioned at the top... The main stirring shaft has multiple main stirring blades equidistantly arranged along the axial direction. The sealing cover is installed on the top of the drying tank through a flange and has a feeding port. The motor is installed on the sealing cover and electrically connected to the controller. Its output shaft passes through the sealing cover and is connected to the main stirring shaft via a coupling. The auxiliary stirring shaft has multiple auxiliary stirring blades equidistantly arranged along the axial direction. Multiple sets of drive mechanisms for driving the auxiliary stirring shaft to rotate forward and backward are evenly installed on the support frame along the circumferential direction. The main stirring shaft is connected to the auxiliary stirring shaft via the drive mechanisms.

[0006] The drive mechanism includes a chute, a gear, a rack, a guide rod, a spring, a roller, and an eccentric disk. A gear is installed at the top of the auxiliary stirring shaft. The chute is installed on a support frame, with its length pointing towards the center of the support frame. The rack is slidably installed in the chute and meshes with the gear. A guide rod is provided at one end of the rack, passing through the end of the chute and connecting to the roller. A spring is sleeved on the guide rod, with one end abutting against the end of the chute and the other end abutting against the limiting block at the end of the guide rod. An eccentric disk is installed on the main stirring shaft. The roller rolls in contact with the edge of the eccentric disk under the elastic force of the spring. The rotation of the eccentric disk drives the rack to move back and forth, thereby driving the auxiliary stirring shaft to perform forward and reverse rotation.

[0007] The main stirring blade is inclinedly mounted on the main stirring shaft, and the secondary stirring blade is inclinedly mounted on the secondary stirring shaft. The inclination angles of the main stirring blade and the secondary stirring blade are set in opposite directions to form a cross-flow stirring effect, which further enhances the uniformity of liquid agitation.

[0008] An arc-shaped scraper is installed at the bottom of the main stirring shaft, and the bottom surface of the arc-shaped scraper is in contact with the bottom of the inner shell of the drying tank.

[0009] The drying tank is covered with an insulating sleeve made of insulating material. The insulating sleeve is fixed to the surface of the outer shell by adhesive or snap-fit. The insulating sleeve effectively reduces heat loss, improves the heat energy utilization rate during the drying process, reduces energy consumption, and avoids the influence of external ambient temperature on the drying effect.

[0010] The beneficial effects of this utility model are:

[0011] This invention utilizes the coordinated operation of the main stirring shaft and the auxiliary stirring shaft, combined with a drive mechanism, to achieve forward and reverse rotation of the auxiliary stirring shaft, significantly improving the uniformity of liquid agitation. At the same time, the structural design of the electric heating tube spirally wound within the interlayer ensures uniform heat distribution, thereby greatly shortening the drying time, improving drying efficiency and product quality, and meeting the demands of modern water-reducing agent processing for efficient and high-quality production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a three-dimensional structural diagram of the internal structure of this utility model.

[0014] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0015] Figure 4 This is a top view of the drive mechanism in its installed state.

[0016] The attached figures are labeled as follows:

[0017] 1. Frame; 2. Drying tank; 3. Sealing cover; 4. Motor; 5. Support frame; 6. Main stirring shaft; 7. Auxiliary stirring shaft; 8. Heating tube; 9. Temperature sensor; 10. Controller; 11. Drive mechanism; 12. Arc-shaped scraper; 21. Discharge port; 31. Feed port; 61. Auxiliary stirring blade; 71. Auxiliary stirring blade; 111. Slide groove; 112. Gear; 113. Rack; 114. Guide rod; 115. Spring; 116. Roller; 117. Eccentric disc. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a novel liquid drying device for polycarboxylate superplasticizer. The novel liquid drying device for polycarboxylate superplasticizer mainly includes a frame 1, a drying tank 2, a sealing cover 3, a motor 4, a support frame 5, a main stirring shaft 6, a secondary stirring shaft 7, an electric heating tube 8, a temperature sensor 9, a controller 10, and a drive mechanism 11; Figure 1 , Figure 2As shown, the drying tank 2 is mounted on the frame 1 and adopts a double-shell structure, with an inner shell and an outer shell forming a sandwich. An electric heating tube 8 is spirally wound inside the sandwich to heat the liquid inside the drying tank. A temperature sensor 9 is embedded in the outer wall of the drying tank 2, enabling real-time detection of temperature changes inside the drying tank. The temperature sensor 9 and the electric heating tube 8 are electrically connected to a controller 10 mounted on the outer wall of the drying tank 2. The controller 10 controls the start / stop of the electric heating tube 8 and adjusts the temperature, thereby ensuring a constant temperature during the drying process. The bottom of the drying tank 2 is equipped with a discharge port 21 with a switch valve for convenient discharge of the dried material. A disc-shaped support frame 5 is located near the top of the drying tank 2. The top of the main stirring shaft 6 passes through the support frame 5 and is mounted on the support frame 5 via bearings. The bottom of the main stirring shaft 6 extends to the bottom of the drying tank 2. Multiple main stirring blades 61 are equidistantly arranged on the main stirring shaft 6 along the axial direction. A sealing cover 3 is mounted on the top of the drying tank 2 via a flange. The sealing cover 3 is provided with a feeding port 31 for adding the polycarboxylate superplasticizer liquid to be dried into the drying tank 2. A motor 4 is mounted on the sealing cover 3 and is electrically connected to a controller 10. Its output shaft passes through the sealing cover 3 and is connected to the main stirring shaft 6 via a coupling, thereby driving the main stirring shaft 6 to rotate. The top of the auxiliary stirring shaft 7 passes through the support frame 5 and is mounted on the support frame 5 via bearings. The bottom of the auxiliary stirring shaft 7 extends to the bottom of the drying tank 2. Multiple auxiliary stirring blades 71 are equidistantly arranged on the auxiliary stirring shaft 7 along the axial direction. Multiple sets of drive mechanisms 11 are evenly installed on the support frame 5 along the circumferential direction. The main stirring shaft 6 is connected to the auxiliary stirring shaft 7 via the drive mechanisms 11, thereby realizing the forward and reverse rotation of the auxiliary stirring shaft 7.

[0020] like Figure 3 As shown, the drive mechanism 11 includes a chute 111, a gear 112, a rack 113, a guide rod 114, a spring 115, a roller 116, and an eccentric disk 117. The gear 112 is mounted on the top of the auxiliary stirring shaft 7. The chute 111 is mounted on the support frame 5, with its length pointing towards the center of the support frame 5. The rack 113 is slidably mounted in the chute 111 and meshes with the gear 112. A guide rod 114 is provided at one end of the rack 113. The guide rod 114 passes through the end of the chute 111 and is connected to the roller 116. The spring 115 is sleeved on the guide rod 114, with one end abutting against the end of the chute 111 and the other end abutting against the limiting block at the end of the guide rod 114. An eccentric disk 117 is mounted on the main stirring shaft 6. The roller 116 rolls in contact with the edge of the eccentric disk 117 under the elastic force of the spring 115. When the main stirring shaft 6 rotates, the eccentric disk 117 rotates accordingly. The change in the shape of its edge drives the roller 116 to move back and forth, which in turn drives the rack 113 to slide back and forth in the groove 111. The reciprocating movement of the rack 113 is converted into the forward and reverse rotation of the auxiliary stirring shaft 7 through the gear 112, thereby realizing the periodic forward and reverse rotation of the auxiliary stirring shaft 7.

[0021] like Figure 2 As shown, the main stirring blade 61 is inclinedly mounted on the main stirring shaft 6, and the auxiliary stirring blade 71 is inclinedly mounted on the auxiliary stirring shaft 7. The inclination angles of the main stirring blade 61 and the auxiliary stirring blade 71 are set in opposite directions, so that the main stirring blade 61 and the auxiliary stirring blade 71 form a cross-flow stirring effect during rotation, which further enhances the uniformity of liquid agitation.

[0022] like Figure 2 As shown, an arc-shaped scraper 12 is installed at the bottom of the main stirring shaft 6, and the bottom surface of the arc-shaped scraper 12 is in contact with the bottom of the inner shell of the drying tank 2; the rotating arc-shaped scraper 12 flips up the bottom material and redistributes it to the stirring area to prevent clumping, ensure uniform heating and drying of the material, and improve the consistency of the finished product quality.

[0023] In addition, the outer shell of the drying tank 2 is covered with an insulated shell made of heat-insulating material. The insulated shell effectively reduces heat loss, improves the heat energy utilization rate during the drying process, reduces energy consumption, and avoids the influence of external ambient temperature on the drying effect.

[0024] Work process:

[0025] In practical applications, firstly, the polycarboxylate superplasticizer liquid to be dried is added to the drying tank 2 through the feeding port 31 on the sealing cover 3. Then, the sealing cover 3 is closed to ensure the sealing of the drying process. The motor 4 is started, and the motor 4 drives the main stirring shaft 6 to rotate via a coupling. The main stirring blades 61 on the main stirring shaft 6 perform initial stirring of the liquid. Simultaneously, the rotation of the main stirring shaft 6 drives the eccentric disk 117 to rotate. The eccentric disk 117 pushes the rack 113 to reciprocate within the slide groove 111 via rollers 116. The reciprocating movement of the rack 113 is converted into the forward and reverse rotation of the auxiliary stirring shaft 7 via gear 112, thereby causing the auxiliary stirring blades 71 on the auxiliary stirring shaft 7 to periodically stir the liquid in both forward and reverse directions. The cross-flow stirring effect of the main stirring blades 61 and the auxiliary stirring blades 71 significantly improves the uniformity of liquid agitation, avoiding the problem of insufficient agitation caused by traditional single stirring shafts and blades. During this process, the controller 10 controls the working state of the heating element 8 based on the temperature signal detected by the temperature sensor 9, so that the heat generated by the heating element 8 in the jacket is evenly transferred to the liquid in the drying tank 2 through the inner shell, ensuring that the liquid is heated evenly. Because the heating element 8 is spirally wound in the jacket, its structural design makes the heat distribution more uniform, thereby significantly shortening the drying time and improving drying efficiency and product quality.

[0026] After drying is complete, the valve at the discharge port 21 is opened to discharge the dried polycarboxylate superplasticizer from the drying tank 2. Throughout the drying process, the insulation shell effectively reduces heat loss and energy consumption, while also preventing the influence of external ambient temperature on the drying effect. Furthermore, the design of the drive mechanism 11 ensures smooth and reliable forward and reverse rotation of the auxiliary stirring shaft 7, further improving the operational stability of the device.

[0027] In summary, the drying device of this utility model, through the coordinated operation of the main stirring shaft 6 and the auxiliary stirring shaft 7, combined with the drive mechanism 11 to achieve the forward and reverse rotation of the auxiliary stirring shaft 7, significantly improves the uniformity of liquid agitation. At the same time, the structural design of the electric heating tube 8 spirally wound in the jacket ensures uniform heat distribution, thereby greatly shortening the drying time, improving drying efficiency and product quality, and meeting the needs of modern water-reducing agent processing for efficient and high-quality production.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A novel liquid drying device for polycarboxylate superplasticizer, characterized in that: The novel polycarboxylate superplasticizer liquid drying device includes a frame (1), a drying tank (2), a sealing cover (3), a motor (4), a support frame (5), a main stirring shaft (6), a secondary stirring shaft (7), an electric heating tube (8), a temperature sensor (9), a controller (10), and a drive mechanism (11). The drying tank (2) is mounted on the frame (1). The drying tank (2) has a double-shell structure, with an inner shell and an outer shell forming a sandwich. The electric heating tube (8) is spirally wound inside the sandwich. The temperature sensor (9) is embedded in the outer wall of the drying tank (2). The temperature sensor (9) and the electric heating tube (8) are electrically connected to the controller (10) mounted on the outer wall of the drying tank (2). The bottom of the drying tank (2) is provided with a discharge port (21) with a switch valve. A disc-shaped support frame (5) is provided inside the drying tank (2) near the top. The top of the main stirring shaft (6) passes through the support frame. The support frame (5) is mounted on the support frame (5) through bearings, and the bottom end extends to the bottom of the drying tank (2). The main stirring shaft (6) is provided with multiple main stirring blades (61) equidistantly along the axial direction. The sealing cover (3) is mounted on the top of the drying tank (2) through a flange. The sealing cover (3) is provided with a feeding port (31). The motor (4) is mounted on the sealing cover (3) and electrically connected to the controller (10). Its output shaft passes through the sealing cover (3) and is connected to the main stirring shaft (6) through a coupling. The top end of the auxiliary stirring shaft (7) passes through the support frame (5) and is mounted on the support frame (5) through bearings. The bottom end extends to the bottom of the drying tank (2). The auxiliary stirring shaft (7) is provided with multiple auxiliary stirring blades (71) equidistantly along the axial direction. Multiple sets of drive mechanisms (11) are evenly installed on the support frame (5) in the circumferential direction. The main stirring shaft (6) is connected to the auxiliary stirring shaft (7) through the drive mechanism (11).

2. The novel polycarboxylate superplasticizer liquid drying device as described in claim 1, characterized in that: The drive mechanism (11) includes a slide (111), a gear (112), a rack (113), a guide rod (114), a spring (115), a roller (116), and an eccentric disc (117). A gear (112) is mounted on the top of the auxiliary stirring shaft (7). The slide (111) is mounted on the support frame (5), with its length pointing towards the center of the support frame (5). The rack (113) is slidably mounted within the slide (111) and meshes with the gear (112). 113) A guide rod (114) is provided at one end. The guide rod (114) passes through the end of the slide (111) and is connected to a roller (116). A spring (115) is sleeved on the guide rod (114). One end of the spring is pressed against the end of the slide (111), and the other end is pressed against the limiting block at the end of the guide rod (114). An eccentric disk (117) is installed on the main stirring shaft (6). The roller (116) rolls and contacts the edge of the eccentric disk (117) under the elastic force of the spring (115).

3. The novel polycarboxylate superplasticizer liquid drying device as described in claim 1 or 2, characterized in that: The main stirring blade (61) is inclinedly mounted on the main stirring shaft (6), and the auxiliary stirring blade (71) is inclinedly mounted on the auxiliary stirring shaft (7). The inclination angles of the main stirring blade (61) and the auxiliary stirring blade (71) are set in opposite directions.

4. The novel polycarboxylate superplasticizer liquid drying device as described in claim 3, characterized in that: The main stirring shaft (6) is equipped with an arc-shaped scraper (12) at its bottom end, and the bottom surface of the arc-shaped scraper (12) is in contact with the bottom of the inner shell of the drying tank (2).

5. The novel polycarboxylate superplasticizer liquid drying device as described in claim 1, characterized in that: The drying tank (2) is covered with an insulating shell made of insulating material, which is fixed to the surface of the outer shell by adhesive or snap fastener.

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