Raw material premixing anti-settling device

Abstract

The utility model provides a kind of raw material premixing anti-settling device, it is related to foaming agent production technical field, and it includes: mixing tank;The lower part of the mixing tank is fixedly connected with multiple groups of support rods in annular array shape;The top surface of mixing tank is provided with cover plate;The top surface of cover plate is bolted and fixedly connected with driving motor;Driving motor rotating shaft lower part is coaxially fixedly connected with transmission rotating shaft;The lower part of transmission rotating shaft is fixedly connected with anchor type paddle.When the situation of instantaneous feeding amount is too large appears, the impact force of raw material to baffle increases momentarily at this time, makes control baffle to turn down, then makes resistance material baffle to turn up by a series of transmission, channel flow cross section reduces in turn, directly limit raw material passing speed, solved the problem that when a large amount of raw material is poured into feed hopper at a time, it is easy to cause instantaneous feeding amount to be larger due to the action of gravity, excessive raw material surges into mixing tank in short time, makes the local raw material concentration in mixing tank too high.

Description

Technical Field

[0001] This utility model relates to the field of foaming agent production technology, and in particular to a raw material premixing anti-settling device. Background Technology

[0002] In the production process of expanded microsphere foaming agent, in order to ensure product quality and stabilize the production process, it is usually necessary to premix the raw materials of expanded microsphere foaming agent. In order to facilitate the premixing of raw materials and to avoid sedimentation during the premixing process from affecting the mixing quality, workers usually use a raw material premixing anti-settling device to premix the raw materials of expanded microsphere foaming agent. Existing raw material premixing anti-settling devices usually consist of a mixing tank, a mixing paddle, a drive motor, a feed hopper, and a discharge pipe.

[0003] For example, utility model application CN202023187987.2 discloses a novel production device for expandable microsphere physical foaming agent, specifically including a mixing tank. A cover plate is provided at the top of the mixing tank, and a drive box is fixedly connected to the center of the lower surface of the cover plate. A drive motor is fixedly connected to the center of the top of the cover plate, and a movable rod is fixedly connected to the output shaft of the drive motor, the movable rod passing through the drive box. This utility model uses multiple rotating rods inside the drive box, with a second gear sleeved on the outside of each rotating rod. The drive motor drives the rotating rods to rotate through the first gear, thereby causing the rotating rods to stir the foaming agent in the mixing tank. Spiral blades on the outside of the rotating rods transport the foaming agent to the top of the mixing tank. The foaming agent enters the inner side of the annular plate and undergoes secondary stirring by the stirring blades, thus improving the stirring effect.

[0004] However, in terms of current traditional raw material premixing and anti-settling devices, when feeding the mixing tank, the feeding operation is often completed by directly pouring a fixed amount of raw material into the feed hopper. However, when feeding solid raw materials, especially high-density solid raw materials, when a large amount of raw material is poured into the feed hopper at one time, the instantaneous feeding volume is easily large due to gravity. Excessive raw material rushes into the mixing tank in a short period of time, making the local raw material concentration in the mixing tank too high. This not only affects the mixing efficiency but also easily forms agglomerates, affecting the mixing effect, making it inconvenient to use. Utility Model Content

[0005] In view of this, the present invention provides a raw material premixing anti-settling device, which has the feature of dynamically adjusting the feed rate according to the feed rate.

[0006] This utility model provides a raw material premixing anti-settling device, specifically including: a mixing tank; multiple sets of support rods are fixedly connected in a ring array at the lower part of the mixing tank; a cover plate is provided on the top surface of the mixing tank; a drive motor is bolted to the top surface of the cover plate; a transmission shaft is coaxially fixedly connected to the lower part of the drive motor shaft; an anchor paddle is fixedly connected to the lower part of the transmission shaft; multiple sets of stirring blades are fixedly connected to the outer center of the transmission shaft; a dispersion disc is coaxially fixedly connected to the upper part of the transmission shaft; a discharge pipe is fixedly fixedly connected to the lower center of the mixing tank; a feed box is fixedly connected to the upper part of the mixing tank; a feed pipe is fixedly connected to the outlet of the feed box; the end of the feed pipe is located inside the mixing tank; and a feed hopper is fixedly connected to the top surface of the feed box.

[0007] Optionally, the upper part of the feed box is rotatably connected to multiple sets of control baffles; the inner side of each set of control baffles is fixedly connected to a connecting spring; the ends of each set of connecting springs are fixedly connected inside the feed box; the positions of each set of control baffles are aligned with the feed hopper; and the outer side of each set of control baffles is coated with polytetrafluoroethylene.

[0008] Optionally, control cams are coaxially fixedly connected to the outside of each of the multiple sets of control baffles; multiple sets of sliding seats are provided at the rear of the feed box; and the positions of the multiple sets of control cams are respectively aligned with the positions of the multiple sets of sliding seats.

[0009] Optionally, guide sliders are fixedly connected to the inner sides of the multiple sets of sliding seats; multiple sets of guide grooves are opened on the rear end face of the feed box; and multiple sets of guide sliders are slidably connected in the multiple sets of guide grooves.

[0010] Optionally, the bottom end faces of the multiple sets of sliding seats are all fixedly connected with transmission racks; the multiple sets of transmission racks are all arranged at the rear of the feed box; the lower part of the feed box is rotatably connected with multiple sets of material blocking baffles; the rear of the multiple sets of material blocking baffles is coaxially fixedly connected with transmission gears; the multiple sets of transmission gears mesh with the multiple sets of transmission racks respectively.

[0011] Optionally, a circulation pump is bolted to the left side of the mixing tank; a suction pipe is fixedly connected to the inlet of the circulation pump; the end of the suction pipe is located at the lower part of the mixing tank; a return pipe is fixedly connected to the outlet of the circulation pump; the end of the return pipe is located at the upper part of the mixing tank.

[0012] Beneficial effects

[0013] In the feeding process, when there is a sudden increase in the instantaneous feed rate, the impact force of the raw material on the baffle increases instantaneously. This impact force overcomes the elasticity of the connecting spring, causing the control baffle to flip downwards. During the flipping of the control baffle, the control cam rotates, and then through a series of transmissions, the material blocking baffle flips upwards. The flow cross-section of the channel is reduced accordingly, directly limiting the raw material's passage speed and preventing excessive raw material from flooding into the mixing tank at once. The channel opening can be automatically adjusted according to the feed rate without manual intervention, ensuring that the raw material enters the mixing tank at a stable speed for mixing, avoiding interference from flow fluctuations in the mixing process. At the same time, the flipping of the baffle can also buffer the gravitational impact of solid particles, preventing particles from getting stuck in the channel. Furthermore, the dynamic narrowing of the baffle suppresses local dilution caused by a sudden excess of liquid, effectively improving the premixing effect of the raw material premixing anti-settling device, enhancing its practicality, and making it more convenient to use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the isometric structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a right-view isometric structural schematic diagram of this utility model.

[0019] Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A.

[0020] Figure 5 This is an isometric structural schematic diagram of the present invention viewed from below.

[0021] Figure 6 This is a utility model Figure 5 A magnified structural diagram at point B.

[0022] Figure 7 This is an isometric structural diagram of the material-blocking baffle of this utility model.

[0023] List of reference numerals

[0024] 1. Mixing tank; 101. Support rod; 102. Cover plate; 103. Drive motor; 104. Transmission shaft; 105. Anchor paddle; 106. Stirring blade; 107. Dispersion disc; 108. Discharge pipe; 109. Extraction pipe; 110. Circulation pump; 111. Return pipe; 112. Feed pipe; 113. Feed box; 114. Feed hopper; 115. Control baffle; 116. Connecting spring; 117. Material blocking baffle; 118. Control cam; 119. Sliding seat; 120. Guide groove; 121. Guide slider; 122. Transmission rack; 123. Transmission gear. Detailed Implementation

[0025] To make the objectives, solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0026] Example 1:

[0027] This utility model proposes a raw material premixing anti-settling device. Please refer to it. Figures 1 to 7 Includes: mixing tank 1;

[0028] The lower part of the mixing tank 1 is fixedly connected to multiple sets of support rods 101 in a circular array; the top surface of the mixing tank 1 is provided with a cover plate 102; the top surface of the cover plate 102 is bolted to a drive motor 103; the lower part of the drive motor 103 shaft is coaxially fixedly connected to a transmission shaft 104; the lower part of the transmission shaft 104 is fixedly connected to an anchor paddle 105; multiple sets of stirring blades 106 are fixedly connected to the outside of the transmission shaft 104; the upper part of the transmission shaft 104 is coaxially fixedly connected to a dispersion disc 107; the lower part of the mixing tank 1 is fixedly connected to a discharge pipe 108; the upper part of the mixing tank 1 is fixedly connected to a feed box 113; the discharge port of the feed box 113 is fixedly connected to a feed pipe 112; the end of the feed pipe 112 is located inside the mixing tank 1; the top surface of the feed box 113 is fixedly connected to a feed hopper 114.

[0029] The upper part of the feed box 113 is rotatably connected to multiple sets of control baffles 115; the inner side of each set of control baffles 115 is fixedly connected to a connecting spring 116; the ends of each set of connecting springs 116 are fixedly connected inside the feed box 113; the positions of each set of control baffles 115 are aligned with the feed hopper 114; the outer side of each set of control baffles 115 is coated with polytetrafluoroethylene.

[0030] Multiple sets of control baffles 115 are coaxially fixedly connected to the outside of control cams 118; multiple sets of sliding seats 119 are provided at the rear of the feed box 113; the multiple sets of control cams 118 are respectively aligned with the positions of the multiple sets of sliding seats 119.

[0031] The inner sides of the multiple sets of sliding seats 119 are fixedly connected with guide sliders 121; the rear end face of the feed box 113 is provided with multiple sets of guide grooves 120; the multiple sets of guide sliders 121 are slidably connected in the multiple sets of guide grooves 120 respectively.

[0032] The bottom surfaces of multiple sets of sliding seats 119 are all fixedly connected with transmission racks 122; multiple sets of transmission racks 122 are all arranged at the rear of the feed box 113; multiple sets of material blocking baffles 117 are rotatably connected to the lower part of the feed box 113; the rear of multiple sets of material blocking baffles 117 are all coaxially fixedly connected with transmission gears 123; multiple sets of transmission gears 123 respectively mesh with multiple sets of transmission racks 122.

[0033] The specific usage and function of this embodiment: The mixing tank 1 is supported by the support rod 101. When premixing the raw materials of the expanded microsphere foaming agent, the raw materials are poured into the feed hopper 114, so that the raw materials enter the mixing tank 1 through the feed box 113 and the feed pipe 112. Then, the drive motor 103 is started, so that the drive motor 103 drives the transmission shaft 104 to rotate. As the transmission shaft 104 rotates, it drives the anchor paddle 105, the stirring blade 106 and the dispersion disk 107 to rotate to premix the raw materials. The anchor paddle 105 can push the deposited high-density solid particles upward to avoid local accumulation. The stirring... The axial or radial thrust of the impeller 106 creates a circulating flow field, conveying the bottom material to the upper middle part. The dispersing disc 107 breaks up the particle agglomerates through high shear force, thereby directly applying thrust to the bottom material. Combined with the circulating flow of the agitator 106, the bottom particles are continuously drawn into the main flow field, preventing sedimentation. During the feeding process, when the raw material enters the feed box 113 at a normal flow rate, the impact force of the raw material on the control baffle 115 is less than the elastic force of the connecting spring 116. Under the action of the elastic potential energy of the connecting spring 116, the control baffle 115 remains in a half-open state, the flow section of the channel is stable, and the raw material passes through the control baffle 115 at a uniform speed. 15 and the baffle 117, along with the feed pipe 112, enter the mixing tank 1 and are uniformly integrated into the flow field. The polytetrafluoroethylene coating sprayed on the outside of the control baffle 115 can prevent the raw material from sticking. If the instantaneous feed rate is too large, the impact force of the raw material on the baffle increases instantaneously. The impact force overcomes the elastic force of the connecting spring 116, causing the control baffle 115 to flip downward. During the flipping process of the control baffle 115, it will drive the control cam 118 to rotate, causing the control cam 118 to press the sliding seat 119 to move. During the movement of the sliding seat 119, it will drive the guide slider 121 to move along the guide groove 120. As the guide slider 121 moves, it provides guidance for the sliding seat 119, ensuring the stable movement of the sliding seat 119. During the movement of the sliding seat 119, it drives the transmission rack 122 to move. As the transmission rack 122 moves, it drives the transmission gear 123 that meshes with it to rotate. As the transmission gear 123 rotates, it causes the material blocking baffle 117 to flip upward, and the flow cross section of the channel is reduced accordingly, directly limiting the speed of raw material passage and preventing excessive raw material from rushing into the mixing tank 1 at once. The mixed raw material can be discharged through the discharge pipe 108, and a one-way valve is provided on the outside of the discharge pipe 108.

[0034] Example 2:

[0035] Based on Example 1, please refer to Figures 1 to 2The mixing tank 1 includes a material extraction pipe 109, a circulation pump 110, and a return pipe 111. The circulation pump 110 is bolted to the left side of the mixing tank 1. The material extraction pipe 109 is fixedly connected to the inlet of the circulation pump 110. The end of the material extraction pipe 109 is located at the lower part of the mixing tank 1. The return pipe 111 is fixedly connected to the outlet of the circulation pump 110. The end of the return pipe 111 is located at the upper part of the mixing tank 1.

[0036] The specific usage and function of this embodiment: During the premixing process of raw materials, the raw materials at the bottom of the mixing tank 1 can be extracted by starting the circulation pump 110 and flowed back to the top of the mixing tank 1 through the return pipe 111 for circulation mixing, thereby further preventing the raw materials from settling.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0039] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0040] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A raw material premixing anti-settling device, comprising: A mixing tank (1); the lower part of the mixing tank (1) is fixedly connected to multiple sets of support rods (101) in a ring array; a cover plate (102) is provided on the top surface of the mixing tank (1); characterized in that a drive motor (103) is bolted to the top surface of the cover plate (102); a transmission shaft (104) is coaxially fixedly connected to the lower part of the drive motor (103) shaft; an anchor paddle (105) is fixedly connected to the lower part of the transmission shaft (104); multiple sets of stirring blades (106) are fixedly connected to the outer center of the transmission shaft (104); a dispersion disc (107) is coaxially fixedly connected to the upper part of the transmission shaft (104); a discharge pipe (108) is fixedly connected to the lower center of the mixing tank (1); a feed box (113) is fixedly connected to the upper part of the mixing tank (1); a feed pipe (112) is fixedly connected to the outlet of the feed box (113); the feed pipe ( The end of 112) is located inside the mixing tank (1); the top surface of the feed box (113) is fixedly connected to the feed hopper (114); multiple sets of control baffles (115) are rotatably connected to the upper part of the feed box (113); control cams (118) are coaxially fixedly connected to the outside of the multiple sets of control baffles (115); multiple sets of sliding seats (119) are provided at the rear of the feed box (113); guides are fixedly connected to the inner side of the multiple sets of sliding seats (119). The bottom surfaces of the slider (121) and the multiple sets of sliding seats (119) are all fixedly connected with transmission racks (122); the multiple sets of transmission racks (122) are all located at the rear of the feed box (113); the lower part of the feed box (113) is rotatably connected with multiple sets of material blocking baffles (117); the rear parts of the multiple sets of material blocking baffles (117) are all coaxially fixedly connected with transmission gears (123); the multiple sets of transmission gears (123) mesh with the multiple sets of transmission racks (122) respectively.

2. The raw material premixing anti-settling device as described in claim 1, characterized in that: The inner side of each of the multiple control baffles (115) is fixedly connected with a connecting spring (116); the ends of the multiple connecting springs (116) are fixedly connected inside the feed box (113); the multiple control baffles (115) are aligned with the feed hopper (114); the outer side of the multiple control baffles (115) is coated with polytetrafluoroethylene.

3. The raw material premixing anti-settling device as described in claim 1, characterized in that: The multiple sets of control cams (118) are respectively aligned with the positions of multiple sets of sliding seats (119).

4. The raw material premixing anti-settling device as described in claim 1, characterized in that: The rear end face of the feed box (113) is provided with multiple sets of guide grooves (120); multiple sets of guide sliders (121) are slidably connected in the multiple sets of guide grooves (120).

5. The raw material premixing anti-settling device as described in claim 1, characterized in that: A circulation pump (110) is bolted to the left side of the mixing tank (1); a suction pipe (109) is fixedly connected to the inlet of the circulation pump (110); the end of the suction pipe (109) is located at the lower part of the mixing tank (1); a return pipe (111) is fixedly connected to the outlet of the circulation pump (110); the end of the return pipe (111) is located at the upper part of the mixing tank (1).

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