CN112479612B

CN112479612B - Quick ageing device of semi-hydrated calcined gypsum powder

Info

Publication number: CN112479612B
Application number: CN202011330255.6A
Authority: CN
Inventors: 李银吉; 于春平; 李泽佑
Original assignee: Fujian Wanhao Gypsum Industry Co ltd
Current assignee: Fujian Wanhao Gypsum Industry Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2022-02-18
Anticipated expiration: 2040-11-24
Also published as: CN112479612A

Abstract

The invention provides a quick aging device for semi-hydrated calcined gypsum powder, which comprises a shell and a weighing device arranged below the shell; the shell is provided with a sealed chamber and a stirring device for stirring gypsum powder; the shell is provided with a dry air inlet for dry air to enter the sealing chamber, a water vapor inlet for water vapor to enter the sealing chamber and a material hole for material to enter and exit; the device also comprises a temperature control device for regulating and controlling the temperature of the sealing chamber and a wet air discharge pipe which is detachably connected with the material hole. Putting the desulfurized gypsum powder into a sealed chamber, opening a dry air inlet and a material hole, and heating the desulfurized gypsum powder in the sealed chamber through a temperature control device to dehydrate the desulfurized gypsum to form anhydrous gypsum; and then reducing the temperature in the sealed chamber, closing the dry air inlet and the material hole, opening the steam inlet, slowly introducing steam, and simultaneously opening the stirring device to quickly and fully mix the anhydrous gypsum and the water to form the alpha-type semi-hydrated gypsum.

Description

Quick ageing device of semi-hydrated calcined gypsum powder

Technical Field

The invention relates to the technical field of gypsum materials, in particular to a semi-hydrated calcined gypsum powder rapid aging device.

Background

Gypsum plays an important role in our industrial production and can be mainly classified into natural gypsum and desulfurized gypsum. In order to practically implement the policy of energy conservation and emission reduction, the construction of the flue gas desulfurization gypsum device of the coal-fired power plant is rapidly developed. The desulfurized gypsum is prepared by adding water into lime-limestone powder to prepare slurry, pumping the slurry into an absorption tower as an absorbent by a pump to be fully contacted and mixed with flue gas, and oxidizing sulfur dioxide in the flue gas, calcium hydroxide in the slurry and air blown from the lower part of the tower to generate calcium sulfate and calcium sulfite. Wherein the content of the dihydrate gypsum is up to 95 percent, which is equivalent to the high-quality natural dihydrate gypsum.

At present, mechanical aging and homogenizing modes such as natural aging of a storage bin, storage dumping and aging and homogenizing are generally adopted for gypsum aging and homogenizing, but devices used for aging and homogenizing have large occupied area, unsatisfactory aging and homogenizing effects and low aging and homogenizing efficiency, so that the existing aging and homogenizing devices have the problems of large occupied area, unsatisfactory aging and homogenizing effects and low efficiency.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

The invention aims to provide a semi-hydrated calcined gypsum powder rapid aging device. The invention has the advantages of small occupied area and good aging and homogenizing effects, and can also improve the aging and homogenizing efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a semi-hydrated calcined gypsum powder rapid aging device comprises a shell and a weighing device arranged below the shell; the shell is provided with a sealed chamber and a stirring device for stirring gypsum powder; the shell is provided with a dry air inlet for dry air to enter the sealing chamber, a water vapor inlet for water vapor to enter the sealing chamber and a material hole for material to enter and exit; the device also comprises a temperature control device for regulating and controlling the temperature of the sealing chamber and a wet air discharge pipe which is detachably connected with the material hole.

The shell comprises an outer shell and an inner barrel; the inner barrel is rotatably connected with the shell.

The inner barrel comprises a barrel main body; the cartridge body having a closed section at one end of the cartridge body; the closing section has an end wall closing the inner bore of the cartridge body.

The closed section is also provided with a first rotating shaft fixedly connected with the end wall; the housing has a first sidewall rotatably coupled to the first shaft.

The barrel body also has an opening section at the other end of the barrel body; the shell is also provided with a second side wall opposite to the first side wall and a connecting part fixedly connected with the second side wall; the connecting part is rotatably connected with the opening section.

The first rotating shaft, the connecting part and the rotating shaft of the cylinder main body are coaxially arranged.

The connecting portion includes a baffle section positioned between the first sidewall and the second sidewall and rotatably connected with the opening section.

The baffle section and the opening section are connected in a sealing mode to form a sealing chamber.

The baffle segment has an opposite face facing the end wall; the opposite surface has a plurality of first communication holes communicating with each other.

The first communicating hole, the dry air inlet and the water vapor inlet are communicated.

The first rotating shaft is provided with the material hole and an electromagnetic valve for opening and closing the material hole; the material hole penetrates through the first rotating shaft along the axis of the first rotating shaft.

The wet air discharge pipe extends into the material hole.

One end of the wet air discharge pipe extending into the material inlet hole is provided with a filter screen for filtering the desulfurized gypsum powder.

The wet air discharge pipe is connected with the material hole in a sealing mode and is arranged coaxially with the first rotating shaft.

The wet air outlet pipe is rotatably connected with the first rotating shaft.

The stirring device comprises an inner gear ring arranged on the inner side wall of the opening section, a gear set connected with the inner gear ring, and stirring blades connected with the gear set.

The connecting part is also provided with a supporting section connected between the second side wall and the baffle plate section; the gear set is arranged between the baffle plate section and the supporting section.

The gear set comprises a central gear which is coaxially arranged with the connecting part and is rotationally connected with the supporting section, and a transmission gear connected between the central gear and the inner gear ring.

The diameter of the central gear is larger than that of the transmission gear.

The diameter of the central gear is smaller than that of the transmission gear.

The stirring device also comprises a second rotating shaft which is connected with the central gear and drives the stirring blades to rotate.

The second rotating shaft and the central gear are coaxially arranged.

The stirring blades are arranged between the baffle plate sections and the end walls; the second rotating shaft is rotatably connected with the baffle plate section.

The transmission gear comprises a first gear, a second gear and a third gear which are uniformly distributed on the supporting section around the central gear.

The stirring device also comprises a connecting mechanism for connecting the central gear and the second rotating shaft; the connecting mechanism comprises a connecting block and a pressure spring which are sleeved outside the second rotating shaft; the pressure spring is abutted between the baffle plate section and the connecting block.

The connecting block comprises a bevel gear; the central gear is provided with a conical tooth surface matched with the connecting block.

The connecting block is connected with the second rotating shaft through a flat key.

The invention also comprises a first driving device for driving the first rotating shaft to rotate.

The first driving device comprises a first driving motor and a transmission belt connected between the first driving motor and the first rotating shaft.

The inner barrel has a seal section between the baffle section and the end wall; the seal segment has threads on an inner sidewall of the seal segment.

The invention also has a first air inlet pipe detachably connected with the dry air inlet and a second air inlet pipe detachably connected with the water vapor inlet.

The opening section is also provided with a limit step for limiting the baffle plate section.

The first rotating shaft is provided with a clamping step clamped on the first side wall.

The shell comprises a shell main body and a first side wall which is detachably connected with the shell main body; the shell main body comprises a second side wall, a top wall arranged at the upper end, a bottom wall arranged at the lower end, a third side wall and a fourth side wall, wherein the third side wall and the fourth side wall are connected between the top wall and the bottom wall.

The first side wall is connected with the shell main body in a sealing mode to form a sealing cavity.

The first driving motor is arranged on the bottom wall.

The temperature control device comprises a heating oil tank arranged outside the shell; the heating oil tank is provided with a first oil inlet pipe and a first oil return pipe which are connected with the sealing cavity.

The heating oil tank is also provided with a first tank body for containing oil and a heating pipe arranged in the first tank body.

The temperature control device also comprises a refrigeration oil tank arranged outside the shell; the refrigerating oil tank is provided with a second oil inlet pipe and a second oil return pipe which are connected with the sealing cavity.

The refrigerating oil tank is also provided with a second tank body for containing oil and a refrigerating pipe arranged in the second tank body.

The invention also comprises a support frame for supporting the shell and a second driving device for driving the shell to rotate; the shell is rotatably connected with the support frame.

The shell further comprises a turnover shaft which is arranged on the shell main body and is rotationally connected with the supporting frame.

The second driving device comprises a connecting chain wheel connected with the turnover shaft, a transmission shaft arranged below the shell and used for driving the connecting chain wheel to rotate, a chain connected between the connecting chain wheel and the transmission shaft, and a second driving motor used for driving the transmission shaft to rotate.

The transmission shaft comprises a shaft main body which is rotationally connected with the support frame and a transmission chain wheel which is arranged on the shaft main body and drives the chain to rotate.

The diameter of the connecting chain wheel is larger than that of the transmission chain wheel.

The support frame comprises a first support frame body and a second support frame body; the third side wall is provided with a first overturning shaft section which is rotationally connected with the first support frame; the fourth side wall is provided with a second overturning shaft section which is rotatably connected with the second support frame body.

The first overturning shaft section and the second overturning shaft section are coaxially arranged.

The connecting chain wheel comprises a first chain wheel arranged on the outer side of the support frame and connected with the first overturning shaft section and a second chain wheel connected with the second overturning shaft section.

The transmission chain wheel comprises a third chain wheel and a fourth chain wheel which are respectively arranged at two ends of the shaft main body.

The chain includes a first chain connected between the first sprocket and the third sprocket, and a second chain connected between the second sprocket and the fourth sprocket.

The invention also includes a feed hopper disposed above the housing.

The support frame also comprises a support plate body connected to the lower ends of the first support frame body and the second support frame body, and an auxiliary support device arranged between the support plate body and the shell.

The auxiliary supporting device comprises an auxiliary plate body parallel to the supporting plate body and a lifting driving cylinder for driving the auxiliary plate body to lift.

The support frame also comprises a tube plate arranged on the outer side of the shell and a third driving device for driving the tube plate to move.

The tube sheet includes a first tube sheet disposed opposite the first sidewall and a second tube sheet disposed opposite the second sidewall.

The second driving device comprises a first telescopic driving cylinder for driving the first tube plate to move and a second telescopic driving cylinder for driving the second tube plate to move.

The shell is provided with a first oil inlet port detachably connected with the first oil inlet pipe, a first oil return port detachably connected with the first oil return pipe, a second oil inlet port detachably connected with the second oil inlet pipe, and a second oil return port detachably connected with the second oil return pipe.

The first oil inlet port, the second oil inlet port, the dry air inlet and the water vapor inlet are arranged on the first side wall; the first oil return port and the second oil return port are arranged on the second side wall.

The first oil inlet pipe, the second oil inlet pipe and the wet air outlet pipe are arranged on the first tube plate; the first air inlet pipe, the second air inlet pipe, the first oil return pipe and the second oil return pipe are arranged on the second tube plate.

The support frame further comprises a first tube plate support frame arranged on the support plate body and used for supporting the first tube plate, and a second tube plate support frame arranged on the support plate body and used for supporting the second tube plate.

The first box body and the second box body are arranged on the supporting plate body.

The weighing device comprises a bearing plate arranged below the supporting plate body and a weighing sensor arranged on the bearing plate.

And a pressure sensor and a temperature sensor are arranged in the sealing chamber.

After the technical scheme is adopted, in the practical implementation process, the material opening is opened to place the desulfurized gypsum powder into the sealed chamber, the dry air inlet is opened and is connected with the wet air discharge pipe, the desulfurized gypsum powder in the sealed chamber is heated by the temperature control device to 220-320 ℃, so that the anhydrite in the desulfurized gypsum is oxidized into gypsum and the anhydrite is dehydrated to form the anhydrite; then, the temperature in the sealing chamber is reduced to 160 ℃ of 130-: slowly introducing steam into the mixture according to the proportion of 136:9, and simultaneously opening a stirring device to quickly and fully mix the anhydrous gypsum and the water to form alpha-type semi-hydrated gypsum; it compares in traditional ageing device, not only has the advantage that area is little and ageing homogenization is effectual, can also improve ageing homogenization efficiency, and it lets in preventing that vapor and anhydrous gypsum mix through the proportion simultaneously, and is more accurate to the control of the gypsum of generating hemihydrate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the housing of the present invention;

FIG. 3 is a schematic view of the inner barrel structure of the present invention;

FIG. 4 is a schematic view of a connecting portion structure according to the present invention;

FIG. 5 is a schematic view of the connecting mechanism of the present invention;

in the figure:

a housing 1; a weighing device 2; a sealed chamber 11; a stirring device 12; a dry air inlet 111; a water vapor inlet 112; a material hole 113; a wet air discharge duct 3; a housing 13; an inner barrel 14; the end walls 141; a first rotating shaft 142; a first side wall 131; a second sidewall 132; a connecting portion 133; a baffle section 1331; a first communication hole 13311; an inner gear ring 121; the stirring blades 122; a support section 1332; a sun gear 123; a drive gear 124; a second rotating shaft 125; a connection block 126; a pressure spring 127; a first drive motor 4; a first intake pipe 51; a second intake pipe 52; a top wall 133; a bottom wall 134; a limit step 143; a retaining step 144; a sealed cavity 15; a first oil inlet pipe 161; a first oil return pipe 162; a second oil inlet pipe 163; a second oil return pipe 164; a support frame 6; a second drive device 7; a connecting sprocket 71; a drive shaft 72; a chain 73; a second drive motor 74; a drive sprocket 721; a frame support plate 63; an auxiliary plate body 64; a feed hopper 8; a first tube sheet 651; a second tube sheet 652; a first oil inlet port 171; a first return port 172; a second oil inlet port 173; a second oil return port 174; a carrier plate 21.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

As shown in fig. 1-5, a quick aging device for semi-hydrated calcined gypsum powder comprises a shell 1 and a weighing device 2 arranged below the shell 1; the housing 1 has a sealed chamber 11 and a stirring device 12 for stirring gypsum powder; the housing 1 has a dry air inlet 111 for dry air to enter the sealed chamber 11, a water vapor inlet 112 for water vapor to enter the sealed chamber 11, and a material hole 113 for material to enter and exit; also comprises a temperature control device for controlling the temperature of the sealing chamber 11 and a wet air discharge pipe 3 which is detachably connected with the material hole 113. In the practical implementation process, the material inlet is opened to place the desulfurization gypsum powder into the sealed chamber, the dry air inlet is opened to connect the wet air discharge pipe, the desulfurization gypsum powder in the sealed chamber is heated by the temperature control device to the temperature of 220-; then, the temperature in the sealing chamber is reduced to 160 ℃ of 130-: slowly introducing steam into the mixture according to the proportion of 136:9, and simultaneously opening a stirring device to quickly and fully mix the anhydrous gypsum and the water to form alpha-type semi-hydrated gypsum; it compares in traditional ageing device, not only has the advantage that area is little and ageing homogenization is effectual, can also improve ageing homogenization efficiency, and it lets in preventing that vapor and anhydrous gypsum mix through the proportion simultaneously, and is more accurate to the control of the gypsum of generating hemihydrate.

Preferably, the housing 1 comprises an outer shell 13 and an inner barrel 14; the inner barrel 14 is rotatably connected to the outer housing 13. In the actual implementation process, anhydrous gypsum powder is on the inside wall of inner tube, through the rotation of inner tube for anhydrous gypsum powder drops from the inside wall and forms the dust with the air mixing, forms half water gypsum with the vapor mixing homogenization in the air simultaneously, the effectual efficiency that improves the ageing homogenization.

Preferably, the inner cartridge 14 comprises a cartridge body; the cylinder main body is provided with a closed section at one end of the cylinder main body; the closing section has an end wall 141 that closes the internal bore of the cartridge body. The gypsum powder is effectively prevented from entering the inner cylinder from the closed section, and the maintenance and the cleaning are convenient.

Preferably, the closing section also has a first rotating shaft 142 fixedly connected to the end wall 141; the housing 13 has a first side wall 131 rotatably connected to a first shaft 142. The inner cylinder can rotate through the rotating connection of the first rotating shaft and the first side wall.

Preferably, the cartridge body further has an open section at the other end of the cartridge body; the housing 13 further has a second sidewall 132 disposed opposite to the first sidewall 131, and a connecting portion 133 fixedly connected to the second sidewall 132; the connecting portion 133 is rotatably connected to the opening section. The inner cylinder is connected with the opening section through the connecting part in a rotating manner, so that the inner cylinder is stable and efficient in rotation.

Preferably, the first rotation shaft 142, the connection part 133 and the rotation shaft of the cylinder main body are coaxially disposed. Furthermore, the rotation of the inner cylinder is more efficient and stable, and the aging efficiency is effectively improved.

Preferably, the connecting portion 133 includes a baffle section 1331 between the first and

second sidewalls

131 and 132 and rotatably connected with the opening section. Furthermore, the baffle section is connected with the opening section in a rotating mode, so that the rotation is more stable and efficient.

Preferably, the baffle section 1331 is sealingly connected to the opening section to form the sealed chamber 11. Forming a sealed chamber in the inner cylinder through the baffle plate section and the end wall, and placing desulfurized gypsum powder in the sealed chamber in the implementation process; the sealed chamber can be heated by the temperature control device, so that the powder is prevented from directly contacting the temperature control device; the powder is heated uniformly.

Preferably, the baffle section 1331 has an opposite face directed toward the end wall 141; the opposite surface has a plurality of first communication holes 13311 communicating with each other. Through setting up a plurality of first through-holes for the gas that gets into first through-hole can be quick diffuses.

Preferably, the first communication hole 13311, the dry air inlet 111 and the water vapor inlet 112 communicate. In practical implementation, dry air and water vapor can be rapidly diffused into the sealed chamber through the first communication hole.

Preferably, the first rotating shaft 142 has a material hole 113 and a solenoid valve for opening and closing the material hole 113; the material hole 113 penetrates the first rotating shaft 142 along the axis of the first rotating shaft 142. The material hole is sealed through the battery valve, so that excessive gypsum powder is prevented from staying in the material hole and failing to participate in stirring.

Preferably, the humid air outlet duct 3 extends into the feed hole 113. In actual practice, the humid air is discharged through the humid air discharge duct.

Preferably, one end of the wet air discharge pipe 3 extending into the feed hole 113 is provided with a filter screen for filtering the desulfurized gypsum powder. The filter screen prevents the moist air from carrying the gypsum powder out of the sealed chamber.

Preferably, the humid air outlet pipe 3 is hermetically connected to the material hole 113 and is coaxially disposed with the first rotating shaft 142. In the practical implementation process, the wet air discharge pipe does not rotate, so that the installation of the wet air discharge pipe is convenient, and the discharge of the wet air is convenient.

Preferably, the humid air outlet duct 3 is rotatably connected to the first rotating shaft 142. In the practical implementation process, the wet air discharge pipe does not rotate, so that the installation of the wet air discharge pipe is convenient, and the discharge of the wet air is convenient.

Preferably, the stirring device 12 includes an inner ring gear 121 disposed on an inner sidewall of the opening section, a gear set connected to the inner ring gear 121, and a stirring blade 122 connected to the gear set. In the actual implementation process, the gear set is driven to rotate through the inner gear ring, so that the stirring blades are driven to rotate, whirlwind is generated, and dust and water vapor are fully mixed and homogenized through the whirlwind.

Preferably, the connecting portion 133 further has a support section 1332 connected between the second sidewall 132 and the baffle section 1331; the gear set is disposed between the baffle section 1331 and the support section 1332. The gear set is protected by the supporting section and the baffle plate section, and foreign objects are prevented from entering the gear set.

Preferably, the gear set includes a sun gear 123 coaxially disposed with the connection part 133 and rotatably connected with the support section 1332, and a transmission gear 124 connected between the sun gear 123 and the ring gear 121. The central gear is driven to rotate by the transmission gear.

Preferably, the diameter of the sun gear 123 is larger than the diameter of the transmission gear 124. The low transmission ratio enables the rotating speed of the central gear to be lower and more stable.

Preferably, the diameter of the sun gear 123 is smaller than the diameter of the transmission gear 124. The rotating speed of the central gear is higher, and the efficiency is higher.

Preferably, the stirring device 12 further comprises a second rotating shaft 125 connected to the central gear 123 for driving the stirring blade 122 to rotate. The central gear drives the second rotating shaft to rotate, so that the stirring blades rotate to generate cyclone, and the gypsum powder and the water vapor are fully mixed and homogenized.

Preferably, the second rotating shaft 125 is coaxially disposed with the sun gear 123. Make the rotation more rapid and stable, and then make the stirring more high-efficient.

Preferably, the stirring blade 122 is disposed between the baffle section 1331 and the end wall 141; second shaft 125 is rotatably coupled to baffle section 1331. Further improving the stirring efficiency.

Preferably, the driving gear 124 includes a first gear, a second gear and a third gear which are disposed on the supporting section 1332 around the central gear 123. In the actual implementation process, the direction of rotation of inner tube is opposite with sun gear's direction of rotation for the rotatory wind speed that produces of relative stirring vane is faster, and stirring effect is better, encircles the setting of sun gear equipartition simultaneously and makes sun gear rotatory steady high efficiency more.

Preferably, the stirring device 12 further comprises a connecting mechanism for connecting the central gear 123 and the second rotating shaft 125; the connecting mechanism comprises a connecting block 126 and a pressure spring 127 which are sleeved outside the second rotating shaft 125; the compression spring 127 abuts against the space between the baffle section 1331 and the connecting block 126. In the actual implementation process, when stirring is needed, the connecting block is embedded into the central gear through the elasticity of the pressure spring, so that the central gear drives the second rotating shaft to rotate; when arranging the material, the material mouth is rotatory to connecting block breaks away from through gravity action and sun gear down, and stirring vane is rotatory when preventing to arrange the material, causes the hindrance to arranging the material.

Preferably, the connecting block 126 comprises a bevel gear; the sun gear 123 has a tapered tooth surface that mates with the connecting block 126. The connection and the separation of the connecting blocks are more efficient by the matching of the bevel gear and the bevel gear surface, and the transmission is more efficient by the matching of the gear and the gear surface.

Preferably, the connecting block 126 and the second rotating shaft 125 are connected together by a flat key. The installation is convenient.

Preferably, the present invention further includes a first driving device for driving the first rotating shaft 142 to rotate. In the actual implementation process, the first rotating shaft is driven by the first driving device during stirring, so that the inner cylinder drives the stirring blades to rotate, and the gypsum powder is uniformly stirred; when discharging, the first driving device drives the inner cylinder to rotate, so that the gypsum powder on the side wall of the inner cylinder falls off, and the discharging efficiency is improved.

Preferably, the first driving means includes a first driving motor 4, and a driving belt connected between the first driving motor 4 and the first rotation shaft 142. The motor overload can be effectively avoided.

Preferably, the inner barrel 14 has a sealing section between the baffle section 1331 and the end wall 141; the seal segment has threads on an inner sidewall of the seal segment. When the stirring is carried out, the motor rotates forwards, the rotating direction of the inner cylinder is opposite to that of the stirring blades, and wind blown out by the stirring blades flows back at the side wall of the inner cylinder through the rotation of the threads to form airflow circulation, so that the stirring efficiency is accelerated; when arranging the material, make the motor upset, carry the gypsum powder that will be on the inner tube lateral wall to the material mouth through the screw thread rotation and discharge, the effectual row material process of accelerating.

Preferably, the present invention further has a first air inlet duct 51 detachably connected to the dry air inlet 111, and a second air inlet duct 52 detachably connected to the water vapor inlet 112. When material feeding and discharging are needed, the first air inlet pipe and the second air inlet pipe are detached, so that the shell can rotate conveniently.

Preferably, the opening section also has a limit step 143 for limiting the flap section 1331. The baffle section is limited through the limiting step, and the inner barrel is convenient to install.

Preferably, the first rotating shaft 142 has a catching step 144 caught on the first sidewall 131. Fix the inner tube through screens step and spacing step for the inner tube can bear bigger pressure.

Preferably, the housing 13 comprises a main body of the housing 13 and a first side wall 131 detachably connected with the main body of the housing 13; the main body of the housing 13 includes a second side wall 132, a top wall 133 disposed at an upper end, a bottom wall 134 disposed at a lower end, and third and fourth side walls connected between the top wall 133 and the bottom wall 134. Make things convenient for the installation of inner tube, first lateral wall detachable connections conveniently overhauls the device simultaneously.

Preferably, the first sidewall 131 is sealingly connected to the body of the housing 13 to form the sealed chamber 15. Make the interior sealed chamber that forms of shell, avoid the heat to scatter and disappear through sealed for temperature control is more stable accurate.

Preferably, the first driving motor 4 is disposed on the bottom wall 134. So that the first drive motor can follow the rotation of the housing.

Preferably, the temperature control device comprises a heating oil tank arranged outside the shell 1; the heating oil tank has a first oil inlet pipe 161 and a first oil return pipe 162 connected to the hermetic chamber 15. In the practical implementation process, the heating oil tank heats oil, the oil is injected into the sealing cavity through the first oil inlet pipe, the inner cylinder is heated, and meanwhile, the first oil return pipe is arranged to enable the oil to flow back for heating again; the inner cylinder can be heated quickly, the heating efficiency is improved, and hot oil is continuously injected to enable the temperature in the sealing cavity to be more stable.

Preferably, the heating oil tank is further provided with a first tank body for containing oil and a heating pipe arranged in the first tank body. The oil is heated by a heating pipe arranged in the first box body.

Preferably, the temperature control device further comprises a refrigeration oil tank arranged outside the shell 1; the refrigerating oil tank has a second oil inlet pipe 163 and a second oil return pipe 164 connected to the hermetic chamber 15. In the practical implementation process, the refrigeration oil tank refrigerates oil, then the oil is injected into the sealing cavity through the second oil inlet pipe, the inner cylinder is cooled, and meanwhile, the second oil return pipe is arranged to enable the oil to flow back for refrigerating again; the inner barrel can be rapidly cooled, and the cooling efficiency is improved; meanwhile, cold oil is continuously injected to enable the temperature in the sealing cavity to be more stable.

Preferably, the refrigeration oil tank is further provided with a second tank body for containing oil, and a refrigeration pipe arranged in the second tank body. The oil is refrigerated through a refrigeration pipe arranged in the second box body.

Preferably, the invention also comprises a supporting frame 6 for supporting the shell 1 and a second driving device 7 for driving the shell 1 to rotate; the shell 1 is rotatably connected with a support frame 6.

Preferably, the housing 1 further comprises a turning shaft rotatably connected with the supporting frame 6 and arranged on the main body of the casing 13. So that the housing can be turned over.

Preferably, the second driving device 7 includes a connecting sprocket 71 connected to the flipping axis, a transmission shaft 72 disposed below the housing 1 to rotate the connecting sprocket 71, a chain 73 connected between the connecting sprocket 71 and the transmission shaft 72, and a second driving motor 74 to drive the transmission shaft 72 to rotate. In the actual implementation process, the second driving motor drives the transmission shaft to drive the connecting chain wheel to rotate, so that the shell rotates, and feeding and discharging are facilitated.

Preferably, the transmission shaft 72 includes a shaft body rotatably connected to the supporting frame 6, and a transmission sprocket 721 provided on the shaft body to rotate the chain 73. The transmission is more efficient through the transmission chain wheel.

Preferably, the diameter of the connecting sprocket 71 is larger than the diameter of the driving sprocket 721. Further, the overturning is more efficient.

Preferably, the supporting frame 6 comprises a first supporting frame body and a second supporting frame body; the third side wall is provided with a first overturning shaft section which is rotationally connected with the first support frame; the fourth side wall is provided with a second overturning shaft section which is rotatably connected with the second support frame body. So that the overturning is more stable and efficient.

Preferably, the first turnover shaft section and the second turnover shaft section are coaxially arranged. Furthermore, the overturning is more stable and efficient.

Preferably, the connecting chain wheel 71 includes a first chain wheel connected with the first turnover shaft section and a second chain wheel connected with the second turnover shaft section, which are disposed outside the supporting frame 6. Furthermore, the overturning is more stable and efficient.

Preferably, the driving sprocket 721 includes a third sprocket and a fourth sprocket respectively disposed at both ends of the shaft body. Through setting up and carrying out the transmission with the third sprocket and the fourth sprocket at axle main part both ends for first sprocket and second sprocket synchronous revolution, and then make the upset steady high-efficient more.

Preferably, the chain 73 includes a first chain connected between the first sprocket and the third sprocket, and a second chain connected between the second sprocket and the fourth sprocket. Furthermore, the overturning is more stable and efficient.

Preferably, the present invention further comprises a feed hopper 8 disposed above the housing 1. The feeding is carried out through gravity through the feeding hole above the setting and the shell, so that the manual operation can be reduced, and the feeding process is effectively accelerated.

Preferably, the supporting frame 6 further comprises a supporting plate 63 connected to the lower ends of the first and second supporting frames, and an auxiliary supporting device disposed between the supporting plate 63 and the casing 1. In the actual implementation process, the casing passes through the trip shaft and rotates in the support frame and connect, for avoiding the involuntary upset in the working process, sets up supplementary strutting arrangement and supports for the casing is more stable in the working process.

Preferably, the auxiliary supporting means includes an auxiliary plate body 64 parallel to the supporting plate body 63 and a lifting driving cylinder for driving the auxiliary plate body 64 to be lifted. Furthermore, the shell is supported through the auxiliary plate body parallel to the supporting plate body, and the shell is prevented from being overturned unintentionally in work.

Preferably, the supporting frame 6 further comprises a tube plate disposed outside the shell 1 and a third driving device 7 for driving the tube plate to move. In the actual implementation process, need to break off trachea and oil pipe for the upset of realizing the casing, and need communicate trachea and oil pipe again at the during operation, set up trachea and oil pipe on the tube sheet, stretch out and draw back through third drive arrangement drive tube sheet and load and unload, can effectual acceleration work efficiency, improve production efficiency.

Preferably, the tube sheet includes a first tube sheet disposed opposite the first sidewall 131, and a second tube sheet disposed opposite the second sidewall 132. Furthermore, the loading and unloading process is accelerated, and the working efficiency is improved.

Preferably, the third driving device 7 comprises a first telescopic driving cylinder for driving the first tube plate to move and a second telescopic driving cylinder for driving the second tube plate to move. Furthermore, the loading and unloading process is accelerated, and the working efficiency is improved.

Preferably, the housing 1 has a first oil inlet port 171 detachably connected to the first oil inlet pipe 161, a first oil return port 172 detachably connected to the first oil return pipe 162, a second oil inlet port 173 detachably connected to the second oil inlet pipe 163, and a second oil return port 174 detachably connected to the second oil return pipe 164. Make things convenient for the dismouting for the loading and unloading process improves work efficiency.

Preferably, the first oil inlet 171 and the second oil inlet 173 are disposed on the first sidewall 131; the first oil return port 172 and the second oil return port 174 are disposed on the second sidewall 132. Make things convenient for the dismouting for the loading and unloading process improves work efficiency.

Preferably, the first oil inlet port 171, the second oil inlet port 173, the dry air inlet 111 and the water vapor inlet 112 are disposed on the first sidewall 131; the first oil return port 172 and the second oil return port 174 are disposed on the second sidewall 132. Make things convenient for the dismouting for the loading and unloading process improves work efficiency.

Preferably, the support frame 6 further includes a first tube plate support frame disposed on the support plate body 63 for supporting the first tube plate, and a second tube plate support frame disposed on the support plate body 63 for supporting the second tube plate. The weighing is convenient.

Preferably, the first case and the second case are provided on the support plate 63. The weighing is convenient.

Preferably, the weighing device 2 comprises a bearing plate 21 arranged below the support plate body and a load cell arranged on the bearing plate 21. Through the weighing sensor who sets up on the loading board can be effectual will be in the weight of the gesso in sealed chamber and weigh out, when the weight of gesso was unchangeable, can think that the gesso dewaters completely and form anhydrous gesso, judges the dehydration process through weight, helps accelerating production efficiency, reduces extravagantly.

Preferably, a pressure sensor and a temperature sensor are provided in the sealed chamber 11. Through setting up with pressure sensor and the temperature sensor in the sealed chamber, can be effectual the environment to the sealed chamber handle the accuse for the hemihydrate gypsum powder of production has higher quality.

Preferably, the first oil inlet port, the second oil inlet port, the first oil return port, the second oil return port, the dry air inlet and the steam inlet are all provided with electromagnetic valve switches.

In the practical implementation process, the shell is driven to turn over through the second driving device, so that the material opening faces upwards, feeding is carried out through the feeding hopper, the shell is turned over until the bottom wall is parallel to the supporting plate body after feeding is finished, the auxiliary supporting device supports the shell, and the shell is connected with the air pipe and the oil pipe through the pipe plate; secondly, heating the sealing chamber to the temperature of 220-320 ℃ through a temperature control device, and continuously and slowly injecting dry air and discharging wet air to completely dehydrate the desulfurized gypsum powder to form anhydrous gypsum powder; then, weighing by a weighing device, confirming that the gypsum powder is completely dehydrated to form anhydrous gypsum powder, confirming the weight of the anhydrous gypsum powder, calculating the weight of introduced water vapor according to the proportion, cooling the sealed chamber to 130-160 ℃ by injecting dry air and exhaust air after the weight is finished, and controlling the pressure in the sealed chamber; then, closing the dry air inlet and the material hole, driving the inner cylinder to rotate by the first driving device, enabling the stirring blades to rotate to generate whirlwind for stirring through the transmission of the inner gear ring and the gear set, and opening the water vapor inlet to slowly introduce water vapor so that anhydrous gypsum and the water vapor are mixed to form alpha-type semi-hydrated gypsum; and simultaneously, slowly reducing the temperature to the normal temperature state. Finally, the auxiliary supporting device descends, and the air pipe and the oil pipe are dismounted through the pipe plate; the second driving device drives the shell to overturn so that the material port faces downwards, and the first driving device drives the inner cylinder to rotate and discharge the alpha-type semi-hydrated gypsum through the material port.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.

Claims

1. A quick ageing device of semi-hydrated calcined gypsum powder is characterized in that: comprises a shell and a weighing device arranged below the shell; the shell is provided with a sealed chamber and a stirring device for stirring gypsum powder; the shell is provided with a dry air inlet for dry air to enter the sealing chamber, a water vapor inlet for water vapor to enter the sealing chamber and a material hole for material to enter and exit; the device also comprises a temperature control device for regulating and controlling the temperature of the sealing chamber and a wet air discharge pipe which is detachably connected with the material hole.

2. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 1, wherein: the shell comprises an outer shell and an inner barrel; the inner barrel is rotatably connected with the shell.

3. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 2, wherein: the inner barrel comprises a barrel main body; the cartridge body having a closed section at one end of the cartridge body; the closing section has an end wall closing the inner bore of the cartridge body.

4. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 3, wherein: the closed section is also provided with a first rotating shaft fixedly connected with the end wall; the housing has a first sidewall rotatably coupled to the first shaft.

5. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 4, wherein: the barrel body also has an opening section at the other end of the barrel body; the shell is also provided with a second side wall opposite to the first side wall and a connecting part fixedly connected with the second side wall; the connecting part is rotatably connected with the opening section.

6. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 5, wherein: the first rotating shaft, the connecting part and the rotating shaft of the cylinder main body are coaxially arranged.

7. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 6, wherein: the connecting portion includes a baffle section positioned between the first sidewall and the second sidewall and rotatably connected with the opening section.

8. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 7, wherein: the baffle section and the opening section are connected in a sealing mode to form a sealing chamber.

9. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 8, wherein: the baffle segment has an opposite face facing the end wall; the opposite surface has a plurality of first communication holes communicating with each other.

10. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 9, wherein: the first communicating hole, the dry air inlet and the water vapor inlet are communicated.

11. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 10, wherein: the first rotating shaft is provided with the material hole and an electromagnetic valve for opening and closing the material hole; the material hole penetrates through the first rotating shaft along the axis of the first rotating shaft.

12. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 11, wherein: the wet air discharge pipe extends into the material hole.

13. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 12, wherein: one end of the wet air discharge pipe extending into the material inlet hole is provided with a filter screen for filtering the desulfurized gypsum powder.

14. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 13, wherein: the wet air discharge pipe is connected with the material hole in a sealing mode and is arranged coaxially with the first rotating shaft.

15. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 14, wherein: the wet air outlet pipe is rotatably connected with the first rotating shaft.

16. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 15, wherein: the stirring device comprises an inner gear ring arranged on the inner side wall of the opening section, a gear set connected with the inner gear ring, and stirring blades connected with the gear set.

17. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 16, wherein: the connecting part is also provided with a supporting section connected between the second side wall and the baffle plate section; the gear set is arranged between the baffle plate section and the supporting section.

18. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 17, wherein: the gear set comprises a central gear which is coaxially arranged with the connecting part and is rotationally connected with the supporting section, and a transmission gear connected between the central gear and the inner gear ring.

19. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 18, wherein: the diameter of the central gear is larger than that of the transmission gear.

20. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 19, wherein: the diameter of the central gear is smaller than that of the transmission gear.

21. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 20, wherein: the stirring device also comprises a second rotating shaft which is connected with the central gear and drives the stirring blades to rotate.

22. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 21, wherein: the second rotating shaft and the central gear are coaxially arranged.

23. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 22, wherein: the stirring blades are arranged between the baffle plate sections and the end walls; the second rotating shaft is rotatably connected with the baffle plate section.

24. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 23, wherein: the transmission gear comprises a first gear, a second gear and a third gear which are uniformly distributed on the supporting section around the central gear.

25. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 24, wherein: the stirring device also comprises a connecting mechanism for connecting the central gear and the second rotating shaft; the connecting mechanism comprises a connecting block and a pressure spring which are sleeved outside the second rotating shaft; the pressure spring is abutted between the baffle plate section and the connecting block.

26. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 25, wherein: the connecting block comprises a bevel gear; the central gear is provided with a conical tooth surface matched with the connecting block.

27. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 26, wherein: the connecting block is connected with the second rotating shaft through a flat key.

28. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 27, wherein: the first driving device is used for driving the first rotating shaft to rotate.

29. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 28, wherein: the first driving device comprises a first driving motor and a transmission belt connected between the first driving motor and the first rotating shaft.

30. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 29, wherein: the inner barrel has a seal section between the baffle section and the end wall; the seal segment has threads on an inner sidewall of the seal segment.

31. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 30, wherein: the air inlet pipe is also provided with a first air inlet pipe which is detachably connected with the dry air inlet and a second air inlet pipe which is detachably connected with the water vapor inlet.

32. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 31, wherein: the opening section is also provided with a limit step for limiting the baffle plate section.

33. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 32, wherein: the first rotating shaft is provided with a clamping step clamped on the first side wall.

34. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 33, wherein: the shell comprises a shell main body and a first side wall which is detachably connected with the shell main body; the shell main body comprises a second side wall, a top wall arranged at the upper end, a bottom wall arranged at the lower end, a third side wall and a fourth side wall, wherein the third side wall and the fourth side wall are connected between the top wall and the bottom wall.

35. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 34, wherein: the first side wall is connected with the shell main body in a sealing mode to form a sealing cavity.

36. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 35, wherein: the first driving motor is arranged on the bottom wall.

37. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 36, wherein: the temperature control device comprises a heating oil tank arranged outside the shell; the heating oil tank is provided with a first oil inlet pipe and a first oil return pipe which are connected with the sealing cavity.

38. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 37, wherein: the heating oil tank is also provided with a first tank body for containing oil and a heating pipe arranged in the first tank body.

39. The apparatus for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 38, wherein: the temperature control device also comprises a refrigeration oil tank arranged outside the shell; the refrigerating oil tank is provided with a second oil inlet pipe and a second oil return pipe which are connected with the sealing cavity.

40. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 39, wherein: the refrigerating oil tank is also provided with a second tank body for containing oil and a refrigerating pipe arranged in the second tank body.

41. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 40, wherein: the support frame is used for supporting the shell, and the second driving device is used for driving the shell to rotate; the shell is rotatably connected with the support frame.

42. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 41, wherein: the shell further comprises a turnover shaft which is arranged on the shell main body and is rotationally connected with the supporting frame.

43. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 42, wherein: the second driving device comprises a connecting chain wheel connected with the turnover shaft, a transmission shaft arranged below the shell and used for driving the connecting chain wheel to rotate, a chain connected between the connecting chain wheel and the transmission shaft, and a second driving motor used for driving the transmission shaft to rotate.

44. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 43, wherein: the transmission shaft comprises a shaft main body which is rotationally connected with the support frame and a transmission chain wheel which is arranged on the shaft main body and drives the chain to rotate.

45. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 44, wherein: the diameter of the connecting chain wheel is larger than that of the transmission chain wheel.

46. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 45, wherein: the support frame comprises a first support frame body and a second support frame body; the third side wall is provided with a first overturning shaft section which is rotationally connected with the first support frame; the fourth side wall is provided with a second overturning shaft section which is rotatably connected with the second support frame body.

47. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 46, wherein: the first overturning shaft section and the second overturning shaft section are coaxially arranged.

48. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 47, wherein: the connecting chain wheel comprises a first chain wheel arranged on the outer side of the support frame and connected with the first overturning shaft section and a second chain wheel connected with the second overturning shaft section.

49. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 48, wherein: the transmission chain wheel comprises a third chain wheel and a fourth chain wheel which are respectively arranged at two ends of the shaft main body.

50. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 49, wherein: the chain includes a first chain connected between the first sprocket and the third sprocket, and a second chain connected between the second sprocket and the fourth sprocket.

51. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 50, wherein: still including setting up the feeder hopper in casing top.

52. The quick aging device for semi-hydrated calcined gypsum powder as claimed in claim 51, wherein: the support frame also comprises a support plate body connected to the lower ends of the first support frame body and the second support frame body, and an auxiliary support device arranged between the support plate body and the shell.

53. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 52, wherein: the auxiliary supporting device comprises an auxiliary plate body parallel to the supporting plate body and a lifting driving cylinder for driving the auxiliary plate body to lift.

54. The device for rapidly aging hemihydrate calcined gypsum powder as set forth in claim 53, wherein: the support frame also comprises a tube plate arranged on the outer side of the shell and a third driving device for driving the tube plate to move.

55. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 54, wherein: the tube sheet includes a first tube sheet disposed opposite the first sidewall and a second tube sheet disposed opposite the second sidewall.

56. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 55, wherein: the second driving device comprises a first telescopic driving cylinder for driving the first tube plate to move and a second telescopic driving cylinder for driving the second tube plate to move.

57. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 56, wherein: the shell is provided with a first oil inlet port detachably connected with the first oil inlet pipe, a first oil return port detachably connected with the first oil return pipe, a second oil inlet port detachably connected with the second oil inlet pipe, and a second oil return port detachably connected with the second oil return pipe.

58. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 57, wherein: the first oil inlet port, the second oil inlet port, the dry air inlet and the water vapor inlet are arranged on the first side wall; the first oil return port and the second oil return port are arranged on the second side wall.

59. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 58, wherein: the first oil inlet pipe, the second oil inlet pipe and the wet air outlet pipe are arranged on the first tube plate; the first air inlet pipe, the second air inlet pipe, the first oil return pipe and the second oil return pipe are arranged on the second tube plate.

60. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 59, wherein: the support frame further comprises a first tube plate support frame arranged on the support plate body and used for supporting the first tube plate, and a second tube plate support frame arranged on the support plate body and used for supporting the second tube plate.

61. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 60, wherein: the first box body and the second box body are arranged on the supporting plate body.

62. The device for rapidly aging hemihydrate calcined gypsum powder as set forth in claim 61, wherein: the weighing device comprises a bearing plate arranged below the supporting plate body and a weighing sensor arranged on the bearing plate.

63. The device for rapidly aging hemihydrate calcined gypsum powder as claimed in claim 62, wherein: and a pressure sensor and a temperature sensor are arranged in the sealing chamber.