A calcium sulfate slurry slurrying device

Abstract

The application discloses a calcium sulfate slurry adjusting device, and relates to the technical field of calcium sulfate preparation.The adjusting device comprises an adjusting cylinder, a main shaft movably arranged on the top plate of the adjusting cylinder, a rotatable auxiliary shaft sleeve sleeved with the part of the main shaft in the adjusting cylinder, a transmission device arranged between the main shaft and the auxiliary shaft sleeve, a supporting rod one arranged on the auxiliary shaft sleeve, a rod sleeve one with adjustable position sleeved on the supporting rod one, and stirring blades one arranged on the rod sleeve one; a supporting rod two is arranged on the main shaft, and stirring blades two are arranged on the supporting rod two. The main shaft, the auxiliary shaft sleeve and the transmission device are arranged, so that the stirring blades one and the stirring blades two have multiple stirring modes, the movement of the slurry in the adjusting chamber is more complex, and the stirring effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of calcium sulfate preparation, and particularly relates to a calcium sulfate slurry mixing device. BACKGROUND

[0002] The calcium sulfate slurry is prepared from desulfurization gypsum after pH value adjustment, concentration adjustment and temperature adjustment, and is a main raw material for manufacturing calcium sulfate fibers. In the preparation process of the calcium sulfate slurry, a mixing device is needed to adjust the concentration and pH value of the original slurry, to mix thoroughly, and to ensure that the prepared calcium sulfate slurry is uniform in composition, so as to facilitate subsequent steam heating and temperature adjustment.

[0003] For example, a calcium sulfate stirring and mixing device (CN107855018A) is disclosed in a Chinese patent, which comprises a stirring tank body, the bottom of the stirring tank body is fixed on a support, the top of the stirring tank body is provided with a material injection port and a liquid injection port, two groups of stirring mechanisms are arranged in the inner cavity of the stirring tank body, and the two groups of stirring mechanisms are arranged alternately, a filter screen assembly is arranged below the stirring mechanisms, and the bottom of the stirring tank body is provided with a discharge port connected with a discharge pipe.

[0004] The device is provided with two kinds of stirring mechanisms, the first stirring mechanism is provided with a first stirring paddle with an L-shaped cross section, and the second stirring mechanism is provided with a second stirring paddle with an arc-shaped cross section. The device improves the stirring effect to a certain extent by arranging multiple stirring mechanisms.

[0005] The deficiencies of the above-mentioned prior art are as follows:

[0006] The inner wall cannot be cleaned, so that part of the slurry deposited and adhered on the inner wall cannot fully participate in the mixing; the position of the stirring paddle is fixed, and the stirring position cannot be changed, so that the slurry flow pattern in the tank is single during stirring, and the stirring efficiency is poor. SUMMARY

[0007] The present application provides a calcium sulfate slurry mixing device to solve the problems of the prior art.

[0008] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0009] A calcium sulfate slurry mixing device, comprising a mixing cylinder, a main shaft movably mounted on the top plate of the mixing cylinder, a part of the main shaft located in the mixing cylinder being sleeved with a rotatable auxiliary shaft sleeve, a transmission device being arranged between the main shaft and the auxiliary shaft sleeve, the transmission device being capable of rotating the main shaft and the auxiliary shaft sleeve in the same direction or in the opposite direction, a power device being arranged at one end of the main shaft extending out of the mixing cylinder, the power device being capable of driving the main shaft to rotate and lift, a first supporting rod being arranged on the auxiliary shaft sleeve, a first rod sleeve being sleeved on the first supporting rod, the position of the first rod sleeve being adjustable, and a first stirring blade being arranged on the first rod sleeve; a second supporting rod being arranged on the main shaft, a second stirring blade being arranged on the second supporting rod, the first stirring blade and the second stirring blade being parallel, and the first stirring blade being capable of abutting against the inner wall of the mixing chamber.

[0010] Specifically, the transmission device comprises a limiting seat and bevel gears one and two rotatably installed on the limiting seat, the bevel gears one and two are fixedly sleeved on the main shaft and auxiliary shaft sleeve respectively, the limiting seat is provided with a guide rod, a reversible limiting plate capable of sliding is installed on the guide rod, a transmission assembly is arranged on the reversible limiting plate, both ends of the guide rod are provided with a sliding sleeve one, the underside of the top plate is provided with two guide columns movably inserted into the sliding sleeve one respectively, one side of the guide rod is provided with a cylinder two, the output end of the cylinder two is fixedly connected with the reversible limiting plate, when the cylinder two works, the transmission assembly can make the bevel gears one and two drive in the same direction, reverse direction or disengage.

[0011] Specifically, the transmission assembly comprises a same direction transmission unit and a reverse direction transmission unit, the same direction transmission unit comprises a bevel gear three rotatably installed on the inner side of one end of the reversible limiting plate, the reverse direction transmission unit comprises a bevel gear four and a bevel gear five rotatably installed on the inner side of the opposite end of the reversible limiting plate from the bevel gear three, the bevel gear four and the bevel gear five are both provided with a spur gear coaxially rotating, the two spur gears are engaged; when the reverse direction transmission unit is connected with the bevel gears one and two, the bevel gears one and two are engaged with the bevel gears four and five respectively.

[0012] Specifically, the auxiliary shaft sleeve movably sleeves a regulating sliding cylinder, a connecting rod is hinged between the regulating sliding cylinder and the rod sleeve one, the end of the regulating sliding cylinder close to the reversible limiting plate movably sleeves a limiting clamping sleeve, the side of the limiting seat close to the limiting clamping sleeve is provided with a guide rail, the guide rail movably sleeves a sliding sleeve two, the sliding sleeve two is fixedly connected with the limiting clamping sleeve, a cylinder three is arranged between the limiting seat and the sliding sleeve two.

[0013] Specifically, the top plate is provided with a rack, the power device comprises a cylinder one and a motor fixed on the rack, the output end of the cylinder one is rotatably connected with the top end of the main shaft and the extension direction of the cylinder one is parallel to the axial direction of the main shaft, the rack is provided with a fixing seat, the fixing seat rotatably installs a transmission gear one, the transmission gear one is spline-fitted between the main shaft, the output end of the motor is provided with a transmission gear two engaged with the transmission gear one.

[0014] Specifically, the auxiliary shaft sleeve is provided with a stirring blade three, the bottom end of the main shaft is provided with a stirring blade four.

[0015] Specifically, the stirring blade three is parallel to the stirring blade four and perpendicular to the stirring blade one, the stirring blade one, the stirring blade two, the stirring blade three and the stirring blade four are all provided with a stirring slope.

[0016] Specifically, the upper part of the size adjusting cylinder is provided with a feeding pipe, a process water supply pipe and a size adjusting agent supply pipe, the bottom part of the size adjusting cylinder is provided with a discharging port.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] By setting the main shaft, the auxiliary shaft sleeve and the transmission device, the transmission device can make the main shaft and the auxiliary shaft sleeve rotate in the same direction or in the opposite direction, and then make the stirring blade one and the stirring blade two stir the slurry in the same direction or in the opposite direction, so that the movement of the slurry in the sizing chamber is more complex, and the stirring effect is improved; when the stirring blade one and the stirring blade two drive the slurry to rotate, the stirring blade three and the stirring blade four can drive the slurry to flow upward or downward from the center of the sizing chamber, produce slurry flow in the same direction or opposite direction, and improve the mixing and stirring effect between the upper and lower layers of the slurry, so that the slurry is more uniform; the stirring mode of the stirring blade one, the stirring blade two, the stirring blade three and the stirring blade four in the sizing chamber can be changed at any time by using the air cylinder one, the air cylinder two and the air cylinder three, so that the stirring effect is improved; when the stirring blade one is attached to the inner wall of the sizing chamber, the stirring blade one can scrape off the slurry attached to the inner wall of the sizing chamber, so that part of the slurry deposited on the inner wall fully participates in the mixing again. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure perspective view of the application;

[0020] Figure 2 It is a schematic view of the internal structure of the application;

[0021] Figure 3 It is a perspective view of the internal structure of the application;

[0022] Figure 4 It is Figure 3 It is a local enlarged view of A in the figure;

[0023] Figure 5 It is a schematic view of the structure of the transmission device of the application;

[0024] Figure 6 It is a sectional view of the sizing chamber of the application.

[0025] In the diagram: 1. Mixing chamber; 2. Transmission chamber; 21. Partition plate; 22. Main shaft; 23. Frame; 231. Cylinder 1; 232. Fixed seat; 233. Transmission gear 1; 234. Motor; 235. Transmission gear 2; 24. Auxiliary bushing; 241. Support rod 1; 242. Rod sleeve 1; 243. Agitator blade 1; 244. Adjusting slide; 245. Connecting rod; 246. Agitator blade 3; 25. Support rod 2; 251. Agitator blade 2; 252. Agitator blade 4; 26. Limiting seat; 261. Conical gear. Wheel 1, 262, Bevel Gear 2, 263, Guide Rod, 264, Guide Column, 265, Sliding Sleeve 1, 266, Auxiliary Support, 267, Cylinder 2, 268, Reversing Limiting Plate, 2681, Bevel Gear 3, 2682, Bevel Gear 4, 2683, Bevel Gear 5, 2684, Spur Gear, 27, Limiting Sleeve, 271, Guide Rail, 272, Sliding Sleeve 2, 273, Cylinder 3, 3, Support Leg, 4, Discharge Port, 5, Feed Pipe, 6, Process Water Supply Pipe, 7, Adjusting Agent Supply Pipe, 8, Top Plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 6 As shown in the figure, an embodiment of the present invention provides a calcium sulfate slurry conditioning device, including a conditioning cylinder, which can be divided into a conditioning chamber 1 and a transmission chamber 2. The conditioning chamber 1 is located below the transmission chamber 2, and a partition 21 is provided between the conditioning chamber 1 and the transmission chamber 2. Support legs 3 are provided around the bottom of the shell of the conditioning chamber 1, which support the conditioning cylinder. A discharge port 4 is provided at the center of the bottom of the conditioning chamber 1, and a feed pipe 5, a process water supply pipe 6, and a regulating agent supply pipe 7 are provided at the upper part of the conditioning cylinder. Figure 2 As can be seen, the feed pipe 5, process water supply pipe 6, and regulating agent supply pipe 7 all pass through the transmission chamber 2 and the partition 21, and are connected to the slurry conditioning chamber 1. The feed pipe 5 is used to deliver the raw slurry into the slurry conditioning chamber 1, the process water supply pipe 6 is used to deliver process water into the slurry conditioning chamber 1 to adjust the concentration to the set value, and the regulating agent supply pipe 7 is used to deliver pH-adjusting agent into the slurry conditioning chamber 1 to adjust the pH of the slurry to the set value.

[0028] The top plate 8 of the size mixing cylinder is centrally rotatably connected with a main shaft 22, and the main shaft 22 has a lifting degree of freedom. The part of the main shaft 22 located in the size mixing cylinder is sleeved with an auxiliary shaft sleeve 24 capable of relative rotation with the main shaft 22, and the relative position of the auxiliary shaft sleeve 24 on the main shaft 22 is fixed. The auxiliary shaft sleeve 24 is fixedly connected with two center-symmetric supporting rods 241, the two supporting rods 241 are sleeved with position-adjustable rod sleeves 242, the two rod sleeves 242 are fixedly connected with two center-symmetric stirring blades 243, and the two stirring blades 243 are fixedly connected with two center-symmetric stirring blades 243. The main shaft 22 is fixedly connected with two center-symmetric supporting rods 25, and the supporting rods 25 are provided with two center-symmetric stirring blades 251. The stirring blades 243 are parallel to the stirring blades 251. When the rod sleeves 242 are moved to the appropriate positions on the supporting rods 241, the stirring blades 243 can be attached to the inner wall of the size mixing chamber 1.

[0029] A transmission device is arranged between the main shaft 22 and the auxiliary shaft sleeve 24, and the transmission device can make the main shaft 22 and the auxiliary shaft sleeve 24 rotate in the same direction or in the opposite direction, or interrupt the transmission between the main shaft 22 and the auxiliary shaft sleeve 24.

[0030] Specifically, the transmission device includes a limiting seat 26 and two bevel gears 261 and 262 rotatably connected with the limiting seat 26, and the bevel gears 261 and 262 are fixedly sleeved with the main shaft 22 and the auxiliary shaft sleeve 24, respectively. Since the main shaft 22 and the auxiliary shaft sleeve 24 only rotate relative to each other, the relative positions of the bevel gears 261 and 262 on the main shaft 22 and the auxiliary shaft sleeve 24 do not change.

[0031] The lower side of the top plate 8 is fixedly connected with two guide columns 264 parallel to the main shaft 22, the guide columns 264 are movably sleeved with two sliding sleeves 265, the two sliding sleeves 265 are fixedly connected with a guide rod 263, the guide rod 263 is fixedly connected with the limiting seat 26, the two sliding sleeves 265 are further fixedly connected with an auxiliary support 266, the auxiliary support 266 is fixedly connected with a pneumatic cylinder 267, the guide rod 263 is movably connected with a reversing limiting plate 268, the output end of the pneumatic cylinder 267 is fixedly connected with the reversing limiting plate 268, and the pneumatic cylinder 267 can drive the reversing limiting plate 268 to move relative to the guide rod 263 when the pneumatic cylinder 267 works. The reversing limiting plate 268 is provided with a transmission assembly, which can switch the cooperation positions of the bevel gears 261 and 262 when the reversing limiting plate 268 moves, so as to make the bevel gears 261 and 262 rotate in the same direction, in the opposite direction or be disconnected.

[0032] Since the auxiliary support 266 and the guide rod 263 are also in a relative fixed relationship, the pneumatic cylinder 267 can also be fixed on the guide rod 263, and the effect generated thereby is the same as that generated when the pneumatic cylinder 267 is fixed on the auxiliary support 266.

[0033] In order to realize the three modes of transmission, the transmission assembly comprises a same direction transmission unit and a reverse transmission unit, the same direction transmission unit comprises a bevel gear three 2681 rotatably installed in the inner side of one end of the reversing limiting plate 268, and the reverse transmission unit comprises a bevel gear four 2682 and a bevel gear five 2683 rotatably installed in the inner side of the opposite end of the reversing limiting plate 268 opposite to the bevel gear three 2681, wherein the bevel gear four 2682 and the bevel gear five 2683 are both provided with a spur gear 2684 coaxially rotatable, and the two spur gears 2684 are engaged.

[0034] When the reverse transmission unit is connected with the bevel gear one 261 and the bevel gear two 262, the bevel gear one 261 and the bevel gear two 262 are engaged with the bevel gear four 2682 and the bevel gear five 2683 respectively, so that the same direction rotation of the bevel gear one 261 and the bevel gear two 262 is realized, at this time, the rotation directions of the main shaft 22 and the auxiliary shaft sleeve 24 are the same, that is, the stirring blades one 243 and the stirring blades two 251 are stirred in the same direction.

[0035] When the same direction transmission unit is connected with the bevel gear one 261 and the bevel gear two 262, the bevel gear one 261 and the bevel gear two 262 are engaged with the bevel gear three 2681, at this time, the rotation directions of the bevel gear one 261 and the bevel gear two 262 are opposite, so that the reverse stirring of the stirring blades one 243 and the stirring blades two 251 is realized.

[0036] When the cylinder two 267 drives the reversing limiting plate 268 to move to the appropriate position, neither the same direction transmission unit nor the reverse transmission unit is engaged with the bevel gear one 261 and the bevel gear two 262, at this time, the transmission between the main shaft 22 and the auxiliary shaft sleeve 24 is interrupted, and the rotation of the main shaft 22 will not drive the auxiliary shaft sleeve 24 to rotate.

[0037] In this way, by using the cylinder two 267, the stirring blades one 243 and the stirring blades two 251 in the sizing cylinder can be repeatedly stirred in multiple cooperation modes, compared with a single stirring mode, the stirring effect is better, and the sizing of the calcium sulfate slurry is more uniform and sufficient.

[0038] In order to conveniently change the position of the rod sleeve one 242 on the support rod one 241, and further adjust the distance between the stirring blades one 243 and the inner wall of the sizing cylinder, the adjusting sliding cylinder 244 is movably sleeved on the auxiliary shaft sleeve 24, the connecting rod 245 is hinged between the adjusting sliding cylinder 244 and the rod sleeve one 242, the adjusting sliding cylinder 244 is movably sleeved with the limiting sleeve 27 close to one end of the reversing limiting plate 268, the limiting sleeve 27 can rotate relative to the adjusting sliding cylinder 244, but the limiting sleeve 27 can block the upper edge of the adjusting sliding cylinder 244, when the limiting sleeve 27 moves up and down along the auxiliary shaft sleeve 24, it can drag the adjusting sliding cylinder 244 to move up and down.

[0039] The limiting seat 26 is fixed with a guide rail 271 near one side of the limiting sleeve 27, the guide rail 271 is movably sleeved with a sleeve 272, the sleeve 272 is fixedly connected with the limiting sleeve 27, and the limiting seat 26 and the sleeve 272 are provided with a cylinder 273. Thus, when the cylinder 273 is extended or retracted, the position of the sleeve 272 on the guide rail 271 can be changed, and the guide rail 271 is parallel to the main shaft 22, so that the position of the limiting sleeve 27 can be changed when the position of the sleeve 272 is changed, thereby driving the adjusting cylinder 244 to move along the auxiliary shaft sleeve 24. When the adjusting cylinder 244 moves along the auxiliary shaft sleeve 24, the rod sleeve 242 can be moved on the supporting rod 241 through the connecting rod 245, thereby changing the distance between the stirring blade 243 and the inner wall of the sizing cylinder.

[0040] In order to further improve the sizing effect, two center-symmetric stirring blades 246 are arranged on the auxiliary shaft sleeve 24, and two center-symmetric stirring blades 252 are arranged at the bottom end of the main shaft 22, the stirring blades 246 are parallel to the stirring blades 252 and perpendicular to the stirring blade 243, and the stirring blade 243, the stirring blade 251, the stirring blade 246 and the stirring blade 252 are all provided with a stirring slope. Figure 6 As shown in the drawings, when the stirring blade 251 rotates counterclockwise, the pulp liquid will be rotated counterclockwise, and the pulp liquid will be concentrated near the inner wall of the sizing cylinder under the influence of centrifugal force. At this time, the stirring blade 243 rotates clockwise, that is, the stirring blade 243 and the stirring blade 251 rotate in opposite directions, the stirring blade 243 can rotate the pulp liquid clockwise, thereby disturbing the stirring of the pulp liquid by the stirring blade 243, disrupting the original movement trend of the pulp liquid, thereby enriching the flow of the pulp liquid and improving the mixing and stirring effect. Figure 6 When the stirring blade 243 and the stirring blade 251 drive the pulp liquid to rotate, the stirring blade 246 and the stirring blade 252 can drive the pulp liquid to flow upward or downward from the center of the sizing chamber 1, produce same-direction or opposite-flowing pulp liquid flow, and improve the mixing and stirring effect between the upper and lower layers of the pulp liquid, so that the pulp liquid is more uniformly prepared.

[0041]

[0042] ​In order to make the stirring blade 243, stirring blade 251, stirring blade 246 and stirring blade 252 more variable stirring slurry, the main shaft 22 is provided with a power device capable of driving the main shaft 22 rotation and lifting at one end of the extension of the mixing cylinder. The top plate 8 is fixedly installed with a rack 23, the power device includes a cylinder 231 and a motor 234 fixed on the rack 23, the output end of the cylinder 231 is rotatably connected with the top end of the main shaft 22 and the extension direction of the cylinder 231 is parallel to the axial direction of the main shaft 22, so that when the cylinder 231 extends or retracts, the main shaft 22 can be lifted. The rack 23 is fixedly installed with a fixed seat 232, the fixed seat 232 is installed with a transmission gear 233 capable of rotating, the transmission gear 233 is spline connected with the main shaft 22, so that when the main shaft 22 moves up and down, the transmission gear 233 can still drive the main shaft 22 to rotate. The output end of the motor 234 is provided with a transmission gear 235 engaged with the transmission gear 233, the motor 234 can drive the transmission gear 235 to rotate, thereby driving the transmission gear 233 to rotate the main shaft 22.

[0043] In use: the raw slurry is transported into the mixing chamber 1 through the feeding pipe 5, then the motor 234 is started, the motor 234 drives the main shaft 22 to rotate, and the raw slurry is stirred. Then the process water and the PH adjusting reagent are transported into the mixing chamber 1 through the process water supply pipe 6 and the adjusting reagent supply pipe 7, the concentration and PH value of the raw slurry are adjusted until the standard is reached. In the process of stirring, the cylinder 231 can be started, the cylinder 231 can lift the main shaft 22, thereby changing the height of the stirring blade 243, stirring blade 251, stirring blade 246 and stirring blade 252, constantly changing the height position of stirring, improving the stirring effect.

[0044] In the process of stirring, the cylinder 273 can also be used to adjust the height of the limiting sleeve 27, thereby changing the height of the adjusting slide cylinder 244, playing the role of adjusting the position of the rod sleeve 242 on the support rod 241, realizing the distance adjustment between the stirring blade 243 and the inner wall of the mixing chamber 1. When the stirring blade 243 adheres to the inner wall of the mixing chamber 1, the stirring blade 243 can scrape the slurry adhered to the inner wall of the mixing chamber 1, so that part of the slurry deposited on the inner wall can participate in mixing again. This function can also be used when cleaning the mixing chamber 1.

[0045] By using the cylinder 267, the matching relationship between the transmission assembly and the bevel gear 261 and the bevel gear 262 can be changed, so that the main shaft 22 and the auxiliary shaft sleeve 24 can switch between same direction transmission, reverse transmission and no transmission, thereby making the stirring blade 243, stirring blade 251, stirring blade 246 and stirring blade 252 have more diverse stirring ability, greatly improving the mixing effect of calcium sulfate slurry.

[0046] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit and essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0047] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A calcium sulfate slurry slurrying device comprising a slurrying cylinder, characterized by, The top plate (8) of the size mixing cylinder is movably provided with a main shaft (22), the part of the main shaft (22) in the size mixing cylinder is sleeved with a rotatable auxiliary shaft sleeve (24), a transmission device is arranged between the main shaft (22) and the auxiliary shaft sleeve (24), the transmission device can make the main shaft (22) and the auxiliary shaft sleeve (24) rotate in the same direction or in the opposite direction, the end of the main shaft (22) extending out of the size mixing cylinder is provided with a power device capable of driving the main shaft (22) to rotate and lift, the auxiliary shaft sleeve (24) is provided with a first supporting rod (241), the first supporting rod (241) is sleeved with a position-adjustable rod sleeve (242), and the rod sleeve (242) is provided with a first stirring blade (243); the main shaft (22) is provided with a second supporting rod (25), the second supporting rod (25) is provided with a second stirring blade (251), the first stirring blade (243) is parallel to the second stirring blade (251), and the first stirring blade (243) can be attached to the inner wall of the size mixing chamber (1). The transmission device comprises a limiting seat (26) and a bevel gear (261) and a bevel gear (262) rotatably arranged on the limiting seat (26), the bevel gear (261) and the bevel gear (262) are fixedly sleeved on the main shaft (22) and the auxiliary shaft sleeve (24) respectively, the limiting seat (26) is provided with a guide rod (263), the guide rod (263) is provided with a reversible limiting plate (268) capable of sliding, the reversible limiting plate (268) is provided with a transmission assembly, both ends of the guide rod (263) are provided with a sliding sleeve (265), the lower side of the top plate (8) is provided with two guide columns (264) movably inserted into the sliding sleeve (265) respectively, one side of the guide rod (263) is provided with a second air cylinder (267), and the output end of the second air cylinder (267) is fixedly connected with the reversible limiting plate (268); when the second air cylinder (267) works, the transmission assembly can make the bevel gear (261) and the bevel gear (262) drive in the same direction, drive in the opposite direction or be disconnected. The auxiliary shaft sleeve (24) is provided with a third stirring blade (246), and the bottom end of the main shaft (22) is provided with a fourth stirring blade (252). The third stirring blade (246) is parallel to the fourth stirring blade (252) and perpendicular to the first stirring blade (243), and the first stirring blade (243), the second stirring blade (251), the third stirring blade (246) and the fourth stirring blade (252) are all provided with stirring slopes; when the first stirring blade (243) and the second stirring blade (251) drive the pulp to rotate, the third stirring blade (246) and the fourth stirring blade (252) can drive the pulp to flow upward or downward from the center of the size mixing chamber (1), so as to produce the same direction or opposite direction pulp flow.

2. A calcium sulphate slurry slurrying device as claimed in claim 1, characterized in that The transmission assembly comprises a same-direction transmission unit and a reverse transmission unit, the same-direction transmission unit comprises a bevel gear three (2681) rotatably installed on the inner side of one end of the reversing limiting plate (268), the reverse transmission unit comprises a bevel gear four (2682) and a bevel gear five (2683) rotatably installed on the inner side of the opposite end of the reversing limiting plate (268) opposite to the bevel gear three (2681), the bevel gear four (2682) and the bevel gear five (2683) are provided with a spur gear (2684) coaxially rotatable, and the two spur gears (2684) are engaged; when the reverse transmission unit is connected with the bevel gear one (261) and the bevel gear two (262), the bevel gear one (261) and the bevel gear two (262) are engaged with the bevel gear four (2682) and the bevel gear five (2683) respectively.

3. A calcium sulfate slurry slurrying device as defined in claim 1, wherein, The auxiliary shaft sleeve (24) movably sleeves the adjusting slide cylinder (244), the adjusting slide cylinder (244) and the rod sleeve one (242) are hingedly connected with the connecting rod (245), the adjusting slide cylinder (244) movably sleeves the limiting clamping sleeve (27) on the end close to the reversing limiting plate (268), the limiting seat (26) is provided with the guide rail (271) on the side close to the limiting clamping sleeve (27), the guide rail (271) movably sleeves the slide sleeve two (272), the slide sleeve two (272) is fixedly connected with the limiting clamping sleeve (27), and the limiting seat (26) and the slide sleeve two (272) are provided with the cylinder three (273).

4. A calcium sulfate slurry slurrying device as defined in claim 1, wherein, The top plate (8) is provided with the rack (23), the power device comprises the cylinder one (231) and the motor (234) fixed on the rack (23), the output end of the cylinder one (231) is rotatably connected with the top end of the main shaft (22), the extension direction of the cylinder one (231) is parallel to the axial direction of the main shaft (22), the rack (23) is provided with the fixing seat (232), the fixing seat (232) rotatably installs the transmission gear one (233), the transmission gear one (233) is spline-connected with the main shaft (22), and the output end of the motor (234) is provided with the transmission gear two (235) engaged with the transmission gear one (233).

5. A calcium sulfate slurry slurrying device as defined in claim 1 wherein, The upper part of the size adjusting cylinder is provided with the feeding pipe (5), the process water supply pipe (6) and the adjusting agent supply pipe (7), and the bottom of the size adjusting cylinder is provided with the discharge port (4).

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