Strong acid liquid stirring device

Abstract

The utility model discloses a strong acid liquid stirring device and relates to the technical field of production equipment for chemical products. The stirring device comprises a base and a stirring tank arranged on the base, a mounting bracket is arranged on the base, a linear motor is arranged on the mounting bracket, a stirring shaft is rotationally connected to the end part of a connecting rod on the linear motor, the other end of the stirring shaft extends into the stirring tank, and a plurality of groups of stirring impellers are arranged on the stirring shaft extending into the stirring tank. A driving mechanism is arranged on the upper side of the stirring tank and comprises a driving box, a first clamping shaft, a second gear rotating shaft and a first motor, a first gear is fixedly arranged on the first motor, a second gear in meshed connection with the first gear is fixedly arranged in the driving box, the second gear is fixedly connected with the second gear rotating shaft, and the second gear rotating shaft is in sliding connection with the first clamping shaft; by flexibly adjusting different heights of the stirring impeller in the liquid stirring tank, flexible stirring of the upper part and the lower part of a chemical product is realized, so that the stirring efficiency of the device on the chemical product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for chemical products, and more specifically, to a stirring device for strong acid liquid. Background Art

[0002] In modern industry, stirring devices are widely used to mix, disperse, suspend, and react materials. Chemical raw materials with strong acidity or strong alkalinity are often used in chemical production processes, and many chemical products also have strong alkalinity or strong acidity. Therefore, when processing strong acid and strong alkalinity raw materials or producing strong acid and strong alkalinity chemical products, chemical production equipment is often required to have good resistance to strong acids and alkalis to ensure stable chemical production. When stirring certain chemical products, it is necessary to use a dedicated chemical product stirring device that is resistant to strong acids and alkalis.

[0003] However, in existing chemical product stirring devices resistant to strong acids and alkalis, most stirring rods are fixed in the stirring tank and the height position of the stirring rod in the stirring tank cannot be flexibly adjusted, resulting in low stirring efficiency of the chemical product by the device. Utility Model Content

[0004] The utility model overcomes the deficiency in existing stirring devices for chemical products that the height position of the stirring rod in the stirring tank cannot be flexibly adjusted, and provides a stirring device for strong acid liquid, which can adjust the height of the stirring impeller in the stirring tank according to stirring requirements, thereby effectively improving the stirring efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a stirring device for a strong acid liquid, comprising a base and a stirring tank arranged on the base, a mounting bracket being provided on the base, a linear motor being provided on the mounting bracket, the connecting rod end on the linear motor being rotatably connected to a stirring shaft, the other end of the stirring shaft extending into the stirring tank, a plurality of stirring impellers being provided on the stirring shaft extending into the stirring tank, and a driving mechanism connected to the mounting bracket being provided on the stirring tank.

[0006] The utility model provides a stirring device for a strong acid liquid, which can drive a stirring shaft to rise or fall for height adjustment through a linear motor, and can flexibly adjust the stirring impeller provided on the stirring device to different height positions in the stirring liquid cavity, thereby realizing flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product.

[0007] The driving mechanism includes a driving box located on the upper side of the mixing tank and connected to the mounting bracket, a clamping shaft 1 fixedly connected to the mixing shaft is provided in the driving box, a second gear shaft slidably connected to the clamping shaft 1 is rotatably provided in the driving box, a first motor is fixed in the driving box, a gear 1 is fixed on the output shaft of the first motor, a gear 2 is fixed in the driving box that is meshed with the gear 1, and the gear 2 is fixedly connected to the second gear shaft.

[0008] When the height of the stirring shaft needs to be adjusted, the drive box and the second gear shaft do not move, and the clamping shaft 1 is adjusted to rise or fall with the stirring shaft; when the stirring impeller needs to stir the liquid in the stirring tank, the second motor is started first, and the rotation of the second motor drives the first gear, the second gear, the second gear shaft and the clamping shaft 1 to rotate in sequence, thereby driving the stirring shaft to rotate with the clamping shaft 1, thereby driving the stirring impeller on the stirring impeller to stir the strong acid chemical product.

[0009] The front and rear walls of the clamping shaft 1 are both provided with symmetrical slots 1, and the inner wall of the gear 2 is provided with a protruding clamping piece that can adapt to the slots 1. Through the cooperation of the protruding clamping piece and the slots 1, the second gear shaft can drive the clamping shaft 1 to rotate accordingly when it rotates.

[0010] The mixing tank is equipped with a mixing liquid chamber. An auxiliary connecting shaft slides within the bottom wall of the mixing liquid chamber. A second slot is provided at the end of the auxiliary connecting shaft. Several sliding blocks slide within the sidewalls of the second slot. A telescopic spring is provided between the sliding blocks and the auxiliary connecting shaft. The side edges of the mixing shaft end are provided with engaging slots that mate with the sliding blocks. The auxiliary connecting shaft is detachably connected to the mixing shaft, allowing the auxiliary connection to move synchronously with the rise and fall of the mixing shaft without affecting its removal and installation. The auxiliary connecting shaft also serves to offset the centrifugal force of the mixing shaft.

[0011] The end of the sliding block is provided with an arc chamfer, which facilitates the sliding engagement and fixing of the sliding block in the auxiliary connecting shaft with the end of the stirring shaft.

[0012] The stirring tank is provided with a stirring liquid chamber, and an auxiliary connecting shaft is slidably mounted within the bottom wall of the stirring liquid chamber. The auxiliary connecting shaft comprises a mounting member and a connecting rod. The mounting member has an internal thread structure within the upper end wall, and the end of the stirring shaft has an external thread structure. The mounting member and the stirring shaft are connected via the internal and external thread structures. The auxiliary connecting shaft is detachably connected to the stirring shaft, allowing the auxiliary connection to move synchronously with the rise and fall of the stirring shaft without affecting the removal and installation of the stirring shaft. The auxiliary connecting shaft also serves to offset the centrifugal force of the stirring shaft.

[0013] The bottom wall of the stirring liquid cavity is provided with a plurality of protrusions, and the bottom wall of the mounting piece is provided with a protrusion cavity which can be adapted to be mounted with the protrusions. When the auxiliary connecting shaft and the stirring shaft are threaded, the auxiliary connecting shaft can be rotationally limited.

[0014] Two sets of cylinders are mounted on the base, with connecting rods fixedly connected to the drive box. Activating the cylinders causes the connecting rods to move the drive box upward, opening the upper end cover of the mixing tank. At this point, the linear motor is activated again, driving the agitator shaft and impeller out of the mixing tank for easy maintenance and replacement of the impeller.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) the linear motor can drive the stirring shaft to rise or fall for height adjustment, and the stirring impeller provided on the stirring shaft can be flexibly adjusted to different height positions in the stirring liquid chamber, thereby realizing flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product; (2) the auxiliary connecting shaft is detachably connected to the stirring shaft, so that the auxiliary connection can move synchronously with the rise or fall of the stirring shaft without affecting the disassembly and installation of the stirring shaft. The auxiliary connecting shaft can also play a role in offsetting the centrifugal force of the stirring shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a stirring device for a strong acid liquid.

[0017] Figure 2 It is attached Figure 1 A partial enlarged view of point "A" in the figure.

[0018] Figure 3 It is a structural schematic diagram of the combination of the auxiliary connecting rod and the stirring shaft in Example 2 of the present utility model.

[0019] Figure 4 It is a structural schematic diagram of the combination of the auxiliary connecting rod and the stirring shaft in Example 3 of the present utility model.

[0020] In the figure: base 100, stirring tank 101, mounting bracket 102, support column 102a, mounting plate 102b, linear motor 103, stirring shaft 104, stirring liquid cavity 105, stirring impeller 106, drive box 107, first gear cavity 108, second motor 109, first gear 110, clamping shaft 111, second gear shaft 112, second gear 113, slot 114, protruding clamping member 115, auxiliary connecting shaft 116, mounting member 116a, connecting rod member 116b, slot 2 117, sliding cavity 118, sliding block 118a, telescopic spring 119, connecting groove 120, arc chamfer 121, internal thread structure 122, external thread structure 123, protrusion 124, protruding cavity 125, cylinder 126, end cover 127, first electromagnet 128, second electromagnet 129. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the technical solution of the utility model through specific embodiments and in conjunction with the accompanying drawings:

[0022] Example 1: See attached Figure 1 , attached Figure 2 A stirring device for a strong acid liquid comprises a base 100 and a stirring tank 101 fixedly arranged on the upper side wall of the base 100, the base 100 is provided with a mounting bracket 102, the mounting bracket 102 comprises four groups of supporting columns 102a arranged around the stirring tank 101, a mounting plate 102b fixedly arranged on the upper end of the supporting columns 102a, a linear motor 103 is fixedly arranged on the lower side wall of the mounting plate 102b, the connecting rod end of the linear motor 103 is rotatably connected to the stirring shaft 104, the stirring shaft The connecting rod 104 is detachably connected to the linear motor 103 for easy maintenance and replacement. The end of the stirring shaft 104 away from the linear motor 103 can extend into the stirring liquid cavity 105 in the stirring tank 101. The stirring shaft in the stirring liquid cavity 105 is provided with two sets of stirring impellers, each consisting of two sets of short stirring impellers 106 symmetrically arranged on the side walls of the stirring shaft 104. A driving mechanism connected to the support column 102a is provided between the stirring tank 101 and the mounting plate 102b. By starting the linear motor 103, the stirring shaft 104 can be driven to rise or fall for height adjustment. The stirring impeller 106 provided on the stirring shaft 104 can be flexibly adjusted to different height positions in the stirring liquid cavity 105, thereby achieving flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product.

[0023] The driving mechanism comprises a driving box 107 arranged on the support columns 102a, a first gear cavity 108 is arranged in the driving box 107, a second motor 109 is fixedly arranged on the inner wall of the first gear cavity 108, a first gear 110 is fixedly arranged on the output shaft of the second motor 109, a clamping shaft 111 is slidingly arranged in the driving box 107 and fixedly arranged with the outer side wall of the stirring shaft 104, a second gear rotating shaft 112 is fixedly arranged between the upper and lower side walls of the first gear cavity 108, a second gear 113 is arranged on the second gear rotating shaft 112, the second gear 113 is meshingly connected with the first gear 110, and the second gear rotating shaft 112 is slidingly connected with the clamping shaft 111. When the stirring shaft 104 needs to be adjusted in height, the driving box 107 and the second gear rotating shaft 112 do not move, and the clamping shaft 111 rises or falls with the stirring shaft 104 for height adjustment. When the stirring impeller 106 needs to stir the liquid in the stirring tank 101, the second motor 109 is started first, and the second motor 109 rotates to drive the first gear 110, the second gear 113, the second gear rotating shaft 112 and the clamping shaft 111 to rotate in turn, so as to drive the stirring shaft 104 to rotate with the clamping shaft 111, and thus drive the stirring impeller 106 on the stirring shaft 104 to stir the strong acid chemical product.

[0024] The front and rear side walls of the clamping shaft 111 are symmetrically provided with a clamping groove 114, and the second gear rotating shaft 112 is provided with a protruding clamping piece 115 which is adapted to be installed in the clamping groove 114. Through the cooperation of the protruding clamping piece 115 and the clamping groove 114, the second gear rotating shaft 112 can drive the clamping shaft 111 to rotate when the second gear rotating shaft 112 rotates. DETAILED DESCRIPTION

[0026] When the stirring impeller 106 needs to stir the liquid in the stirring tank 101, the second motor 109 is started first, and the second motor 109 rotates to drive the first gear 110, the second gear 113, the second gear rotating shaft 112 and the clamping shaft 111 to rotate in turn, so as to drive the stirring shaft 104 to rotate with the clamping shaft 111, and thus drive the stirring impeller 106 on the stirring shaft 104 to stir the strong acid chemical product.

[0027] The driving box 107 and the second gear shaft 112 do not move, and the clamping shaft 111 will rise or fall with the stirring shaft 104 for height adjustment; when the stirring shaft 104 needs to be adjusted in height, the linear motor 103 is started to drive the stirring shaft 104 to rise or fall flexibly for height adjustment, thereby driving the stirring impeller 106 to flexibly adjust to different heights in the stirring liquid cavity 105, thereby achieving flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product.

[0028] Example 2:

[0029] See attached Figure 1 , attached Figure 2 , attached Figure 3 This embodiment is based on the embodiment 1 and adds an auxiliary connecting shaft 116 structure.

[0030] The auxiliary connecting shaft 116 is slidably arranged in the bottom wall of the stirring liquid chamber 105. The auxiliary connecting shaft 116 includes a mounting member 116a and a connecting rod member 116b. A second card groove 117 is provided in the upper end wall of the mounting member 116a. Two sets of sliding cavities 118 are provided in the side walls of the second card groove 117. A sliding block 118 is slidably provided in the sliding cavity 117. A telescopic spring 119 is provided between the bottom of the sliding slider 118 and the bottom wall of the sliding cavity 117. In the initial state of the telescopic spring 119, the sliding block 118a partially extends into the second card groove 117. When the sliding block 118a is pushed, the telescopic spring 119 is compressed (in this process, the sliding block 118 can be fully extended into the second card groove 117). When the thrust disappears, the compressed telescopic spring 119 can pop out and reset the sliding block 118a under the action of the elastic force.

[0031] A snap-in groove 120 is provided in the outer wall near the end of the stirring shaft 104, and the snap-in groove 120 can be adapted to be installed with the sliding block 118. The two sets of sliding blocks 118a are provided with arc chamfers 121 at the end positions on the opposite side. When the stirring shaft 104 is adjusted to the bottom of the stirring liquid chamber 105 by the linear motor 103, one of the stirring shafts 104 will first enter the second snap-in groove 117, and then the bottom of the stirring shaft 104 will contact and slide with the arc chamfer 121 of the sliding block 118a, thereby driving the sliding block 118a to push. During this process, the telescopic spring 119 is gradually compressed until the snap-in groove 120 is aligned with the sliding block 118a. The sliding block 118a will be inserted into the snap-in groove 120 under the elastic force of the telescopic spring 119, thereby achieving the clamping and fixing of the stirring shaft 104 and the auxiliary connecting shaft 116. A first electromagnet 128 is provided in the bottom wall of the sliding cavity 118, and a second electromagnet 119 is provided in the bottom wall of the sliding block 118a. After power is turned on, the first electromagnet 118 and the second electromagnet 119 can attract each other, thereby driving the sliding slider 118a to retract into the sliding cavity 118, allowing the sliding block 118a to slide out of the clamping groove 120, thereby realizing the separation of the stirring shaft 104 from the auxiliary connecting member 116.

[0032] The connecting rod 116b is slidably installed in the cavity in the bottom wall of the stirring liquid cavity 105, so the auxiliary connecting shaft 116 can move synchronously with the rise or fall of the stirring shaft 104, and the auxiliary connecting shaft 116 has the effect of offsetting the centrifugal force of the stirring shaft 104.

[0033] When the stirring impeller 106 needs to stir the liquid in the stirring tank 101, the second motor 109 is started first. The rotation of the second motor 109 drives the first gear 110, the second gear 113, the second gear shaft 112 and the clamping shaft 111 to rotate in sequence, thereby driving the stirring shaft 104 to rotate along with the clamping shaft 111, thereby driving the stirring impeller 106 on the stirring shaft 104 to stir the strong acid chemical product.

[0034] The driving box 107 and the second gear shaft 112 do not move, and the clamping shaft 111 will rise or fall with the stirring shaft 104 to adjust the height; when the stirring shaft 104 needs to be adjusted in height, the stirring shaft 104 is first adjusted to the bottom of the stirring liquid chamber 105 by the linear motor 103, and the stirring shaft 104 will first enter the second slot 117, and then the bottom of the stirring shaft 104 will contact and slide with the chamfer 121 of the sliding block 118, thereby driving the sliding block 118 to push, and in this process, the telescopic spring 119 gradually The linear motor 103 is then started to drive the stirring shaft 104 to rise or fall flexibly to adjust the height, thereby driving the stirring impeller 106 to flexibly adjust to different heights in the stirring liquid chamber 105, thereby achieving flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product.

[0035] Beneficial effects: (1) The linear motor can drive the stirring shaft to rise or fall to adjust the height, and the stirring impeller set on the stirring device can be flexibly adjusted to different height positions in the stirring liquid chamber, so as to achieve flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product; (2) The auxiliary connecting shaft is detachably connected to the stirring shaft, so that the auxiliary connection can move synchronously with the rise or fall of the stirring shaft without affecting the disassembly and installation of the stirring shaft. The auxiliary connecting shaft can also play a role in offsetting the centrifugal force of the stirring shaft.

[0036] Example 3:

[0037] See attached Figure 1 , attached Figure 2 , attached Figure 4 This embodiment is based on the embodiment 1 and adds an auxiliary connecting shaft 116 structure.

[0038] The auxiliary connecting shaft 116 is slidably disposed in the bottom wall of the stirring liquid chamber 105 . The auxiliary connecting shaft 116 includes a mounting member 116 a and a connecting rod 116 b . An internal thread structure 122 is disposed in the upper end wall of the mounting member 116 a .

[0039] The outer side wall near the end of the stirring shaft 104 is provided with an external thread structure 123, and the internal thread structure 122 on the mounting piece 116a can be threadedly installed with the external thread structure 123 on the stirring shaft 104. The bottom wall of the stirring liquid cavity 105 is provided with two groups of protrusions 124, and the bottom wall of the mounting piece 116a is provided with protrusion cavities 125 that can be matched with the protrusions 124. When the stirring shaft 104 is adjusted to be close to the bottom of the stirring liquid cavity 105 by the linear motor 103, the stirring shaft 104 will first contact the mounting piece 116a, and then the driving mechanism and the linear motor 103 are started to threadedly engage and connect the two, to realize fixed installation. After installation is completed, the stirring shaft 104 and the connecting assembly of the auxiliary connecting shaft 116 need to be first raised and adjusted by the linear motor 103, to a certain height, so that the protrusions 124 and the protrusion cavities 125 are completely separated, and then the stirring operation is performed. The auxiliary connecting shaft 116 has a counteracting centrifugal force effect on the stirring shaft 104. DETAILED DESCRIPTION

[0041] When the stirring impeller 106 needs to stir the liquid in the stirring tank 101, the second motor 109 is first started, and the rotation of the second motor 109 in turn drives the rotation of the first gear 110, the second gear 113, the second gear shaft 112, and the clamping shaft 111 to rotate, thereby driving the stirring shaft 104 to rotate with the clamping shaft 111, thereby driving the stirring impeller 106 on the stirring shaft 104 to stir the strong acid chemical product.

[0042] The driving box 107 and the second gear shaft 112 do not move, and the clamping shaft 111 will rise or descend with the height adjustment of the stirring shaft 104; when the stirring shaft 104 is adjusted to be close to the bottom of the stirring liquid cavity 105 by the linear motor 103, the stirring shaft 104 will first contact the mounting piece 116a, and then the driving mechanism and the linear motor 103 are started to threadedly engage and connect the two, to realize fixed installation. After installation is completed, the stirring shaft 104 and the connecting assembly of the auxiliary connecting shaft 116 need to be first raised and adjusted by the linear motor 103, to a certain height, so that the protrusions 124 and the protrusion cavities 125 are completely separated, and then the stirring operation is performed; that is, the stirring shaft 104 is raised or descended by the linear motor 103 to flexibly adjust the height, thereby driving the stirring impeller 106 to flexibly adjust the height in the stirring liquid cavity 105, thereby realizing flexible stirring of the upper and lower parts of the strong acid chemical product, and thereby improving the stirring efficiency of the device on the chemical product.

[0043] Beneficial effects: (1) The linear motor can drive the stirring shaft to rise or fall to adjust the height, and the stirring impeller set on the stirring device can be flexibly adjusted to different height positions in the stirring liquid chamber, so as to achieve flexible stirring of the upper and lower parts of the strong acid chemical product, thereby improving the stirring efficiency of the device for the chemical product; (2) The auxiliary connecting shaft is detachably connected to the stirring shaft, so that the auxiliary connection can move synchronously with the rise or fall of the stirring shaft without affecting the disassembly and installation of the stirring shaft. The auxiliary connecting shaft can also play a role in offsetting the centrifugal force of the stirring shaft.

[0044] Example 4:

[0045] See attached Figure 1 This embodiment further limits the auxiliary connecting shaft 116 based on embodiment 1, embodiment 2 or embodiment 3.

[0046] Two groups of cylinders 126 are fixedly provided on the base 100. The cylinders 126 are respectively arranged on both sides of the mixing tank 101. The connecting rods on the cylinders 127 are fixedly connected to the bottom wall of the drive box 107. The drive box 107 is connected to the support column 102a by sliding, and the upper end cover of the mixing tank 101 is moved and opened. By starting the cylinders 126, the connecting rods on the cylinders 126 can drive the drive box 107 to move upward, and then open the upper end cover 127 of the mixing tank 101. At this time, starting the linear motor 103 again can drive the stirring shaft 104 and the stirring impeller 106 to move out of the mixing tank 101, making it convenient for maintenance and the removal and replacement of the stirring impeller 106.

Claims

1. A stirring device for a strong acid liquid, characterized in that: It includes a base and a stirring tank arranged on the base, a mounting bracket is provided on the base, a linear motor is provided on the mounting bracket, the connecting rod end of the linear motor is rotatably connected to the stirring shaft, the other end of the stirring shaft extends into the stirring tank, and several groups of stirring impellers are provided on the stirring shaft extending into the stirring tank, and the stirring tank is provided with a driving mechanism connected to the mounting bracket.

2. The stirring device for a strong acid liquid according to claim 1, characterized in that: The driving mechanism includes a driving box located on the upper side of the mixing tank and connected to the mounting bracket, a clamping shaft 1 fixedly connected to the mixing shaft is provided in the driving box, a second gear shaft slidably connected to the clamping shaft 1 is rotatably provided in the driving box, a first motor is fixed in the driving box, a gear 1 is fixed on the output shaft of the first motor, a gear 2 is fixed in the driving box that is meshed with the gear 1, and the gear 2 is fixedly connected to the second gear shaft.

3. A stirring device for a strong acid liquid according to claim 2, characterized in that: Symmetrical clamping grooves 1 are provided in the front and rear walls of the clamping shaft 1, and a protruding clamping piece that can be matched with the clamping grooves 1 is provided on the inner hole wall of the gear 2.

4. A stirring device for a strong acid liquid according to claim 3, characterized in that: A stirring liquid cavity is provided in the stirring tank, an auxiliary connecting shaft is slidingly provided in the bottom wall of the stirring liquid cavity, a second card slot is provided at the end of the auxiliary connecting shaft, a plurality of sliding blocks are slidingly provided in the side wall of the second card slot, a telescopic spring is provided between the sliding block and the auxiliary connecting shaft, and a connecting groove which can be plugged into the sliding block is provided in the side edge of the end of the stirring shaft.

5. A stirring device for a strong acid liquid according to claim 4, characterized in that: The end of the sliding block is provided with an arc chamfer.

6. A stirring device for a strong acid liquid according to claim 3, characterized in that: A stirring liquid cavity is provided in the stirring tank, and an auxiliary connecting shaft is slidingly provided in the bottom wall of the stirring liquid cavity. The auxiliary connecting shaft includes a mounting part and a connecting rod part. An internal thread structure is provided in the upper end wall of the mounting part, and an external thread structure is provided at the end of the stirring shaft. The mounting part and the stirring shaft can be connected through the internal and external thread structures.

7. A stirring device for a strong acid liquid according to claim 6, characterized in that: A plurality of protrusions are arranged on the bottom wall of the stirring liquid cavity, and a protrusion cavity which can be matched with the protrusions is arranged in the bottom wall of the mounting piece.

8. A stirring device for a strong acid liquid according to any one of claims 4 to 6, characterized in that: Two groups of cylinders are arranged on the base, and the connecting rods on the cylinders are fixedly connected to the drive box.

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