CN110559670B - Gypsum slurry foam powder making system and construction method thereof - Google Patents
Gypsum slurry foam powder making system and construction method thereof Download PDFInfo
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- CN110559670B CN110559670B CN201910797121.6A CN201910797121A CN110559670B CN 110559670 B CN110559670 B CN 110559670B CN 201910797121 A CN201910797121 A CN 201910797121A CN 110559670 B CN110559670 B CN 110559670B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0064—Feeding of liquid into an evaporator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
- B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/24—Evaporating by bringing a thin layer of the liquid into contact with a heated surface to obtain dry solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The invention discloses a gypsum slurry foam powder making system and a construction method thereof, wherein the powder making system comprises a feeding unit, a powder making unit and a collecting unit; the feeding unit comprises a foam collecting tank and a material guide groove connected to the side surface of the bottom of the collecting tank; the powder making unit comprises a dehumidifying roller, a central cylinder penetrating into the dehumidifying roller, a transmission motor connected to one end of the dehumidifying roller, a heating main pipe connected to one end of the central cylinder far away from the transmission motor, and a heating pipe connected to the central cylinder in the dehumidifying roller; the collecting unit comprises a scraper and a collector below the scraper; during construction, the invention dehydrates and manufactures the gypsum slurry foam into powder by the arrangement of the dehumidifying roller and the design of heating in the dehumidifying roller, and recycles or recycles the gypsum slurry foam into powder by the collector; the rotation through dehumidification cylinder effectively combines with scraping off of scraper blade, can make the foam easily dewater and convenient the retrieving after the dehydration becomes the powder.
Description
Technical Field
The invention relates to a gypsum desulfurization process, in particular to a gypsum slurry foam powder making system and a construction method thereof.
Background
At present, the environmental protection requirement of China on thermal power plants is more and more strict, and the emission standard of atmospheric pollutants of thermal power plants is further improved, so that the desulfurization and emission reduction tasks of thermal power generating units are more and more severe. In the desulfurization process, in desulfurization absorption tower circulation system, the absorption tower design operation liquid level is higher, if the flue gas carries a large amount of impurity and gets into the desulfurization absorption tower, can cause the gypsum thick liquid to bubble or overflow, very easily takes place to fly bubble or thick liquid from the spout after the gypsum thick liquid bubbles, pollutes peripheral facility equipment by a large scale, causes the environmental protection pollution incident, influences desulfurization efficiency, and has impaired the life of machine equipment. At present, defoaming is carried out by adopting an externally-arranged defoaming agent, the cost is high, and a large amount of acid insoluble substances, heavy metal ions and oil stains generated by boiler combustion in slurry can not be eliminated in a short time; and the gypsum slurry foam has certain adhesiveness and is not easy to process and recycle. Therefore, it is desirable to provide a system and method for externally treating gypsum slurry foam, saving treatment costs, and efficiently dewatering and recovering foam powder.
Disclosure of Invention
The invention provides a gypsum slurry foam powder making system and a construction method thereof, which are used for solving the technical problems of overflow of a large amount of gypsum slurry foam, external dehydration treatment, low cost, effective recovery of foam powder and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a gypsum slurry foam pulverizing system comprises a feeding unit, a pulverizing unit and a collecting unit;
the feeding unit comprises a foam collecting tank and a material guide groove connected to the side surface of the bottom of the collecting tank;
the powder making unit comprises a dehumidifying roller, a central cylinder penetrating into the dehumidifying roller, a transmission motor connected to one end of the dehumidifying roller, a heating main pipe connected to one end of the central cylinder far away from the transmission motor, and a heating pipe connected to the central cylinder in the dehumidifying roller;
the collecting unit comprises a scraper and a collector below the scraper;
the lower part of the guide chute is connected with a dehumidifying roller, and the lower end part of the guide chute is in pressure joint with the outer side surface of the dehumidifying roller; the scraper is arranged on the lower portion of the vertical section of the dehumidifying drum, and the scraper is arranged in a tangent mode with the outer side face of the dehumidifying drum.
Furthermore, the foam collecting tank is a trapezoidal tank with a large upper part and a small lower part, and the cross section of the foam collecting tank is rectangular; the foam collecting tank is connected or hung on the upper structure through a support frame, and a discharge door is further arranged at the bottom of the foam collecting tank.
Furthermore, the guide chute is a group of guide plates symmetrically connected to two sides of the foam collecting tank, the two guide plates are arranged in an inverted splayed shape, and the horizontal distance between the bottom ends of the two guide plates is smaller than the horizontal length of the dehumidifying drum.
Furthermore, the dehumidifying roller is a cylinder with a shaft axis arranged horizontally and left and right sealing plates, and is made of heat-conducting and anti-corrosion materials; the center of the outer side face of one end sealing plate of the dehumidifying roller is connected with a connecting bearing, and the connecting bearing is connected with a rotating bearing on the transmission motor in a matching manner.
Furthermore, the axis of the central cylinder coincides with the axis of the dehumidifying drum, one end of the central cylinder close to the transmission motor is connected to the inner side of the dehumidifying drum sealing plate, and one end of the central cylinder far away from the transmission motor penetrates out of the dehumidifying drum sealing plate and is connected with the heating main pipe.
Furthermore, the central cylinder is communicated with the heating main pipe, two holes are formed in the connecting section of the central cylinder in the dehumidifying roller, and the two holes are horizontally arranged; the two holes are respectively a pipe inlet hole and a pipe outlet hole.
Furthermore, a heating pipe penetrates through the heating main pipe and the central cylinder; the heating pipe penetrates into the dehumidification drum from the self-heating main pipe of the central cylinder and then penetrates into the dehumidification drum from the upper pipe hole of the central cylinder; the heating pipes are arranged in the dehumidifying roller as multi-stage U-shaped pipes; the heating pipe penetrates out of the dehumidifying roller from the outlet hole of the central cylinder and then penetrates back to the heating main pipe from the central cylinder.
Furthermore, the contact surface of the central cylinder and the dehumidifying roller is connected or in clearance connection through a bearing, and a fixed sleeve is connected below the end part of the penetrating section of the central cylinder; the fixed sleeve below is connected with the support column, and the support column is connected with ground basis.
Furthermore, hanging rods are connected to the supporting columns at intervals in the upward direction, and the hanging rods are horizontally arranged and vertically connected with the supporting columns; the hanging rod is connected with a scraper and detachably connected with the scraper.
Further, the construction method of the gypsum slurry foam powder making system comprises the following specific steps:
determining the material, the volume and the size of a bottom outlet of a foam collecting pool according to the overflow amount and the water content of the gypsum slurry foam; the foam collecting tank is fixedly installed by prefabricating a corresponding support frame, a discharge door is installed inside the foam collecting tank, and the bottom end of the discharge door is not more than the end part of the foam collecting tank when the discharge door is electrically controlled and opened; two sides of the bottom end of the foam collecting pool are connected with material guide grooves, and the material guide grooves are made of asbestos plates, and the thickness of the material guide grooves is not less than 3 cm;
secondly, a thin-wall dehumidifying roller is made of heat-conducting and anti-corrosion materials, the length of the dehumidifying roller is larger than the width of an outlet at the bottom of a foam collecting pool, the height difference between the top of the dehumidifying roller and the outlet end at the bottom of the foam collecting pool after installation is suitable for falling of gypsum slurry foam, and the diameter of the dehumidifying roller is suitable for meeting the requirement of powder-making water content after the gypsum slurry foam is spread and rotates for less than one week when being heated;
step three, manufacturing a central cylinder, wherein the diameter of the central cylinder is smaller than that of the dehumidifying roller and can support the weight of the dehumidifying roller, an inlet pipe hole and an outlet pipe hole are arranged on the central cylinder in advance, and a heating pipe is connected in a penetrating manner before the central cylinder is arranged on the dehumidifying roller; after the central cylinder is installed in the dehumidifying roller, the penetrating end of the central cylinder is connected with the heating main pipe, and the penetrating end of the central cylinder is sleeved with the fixed sleeve and provided with the support column; mounting hanging rods on the supporting columns, mounting scraping plates on the hanging rods, adjusting the scraping plates to enable the scraping plates to be attached to the surface of the dehumidifying drum, wherein the scraping plates can be provided with a plurality of groups;
step four, determining the heights of the dehumidifying roller and the collector, wherein the heights of the dehumidifying roller and the collector are suitable for the gypsum slurry to fall after the gypsum slurry is foamed into powder, so that the powder is prevented from splashing; wherein, the collector is a trapezoid pool with a big top and a small bottom; a connecting bearing is arranged on the outer side of the sealing plate on one side of the dehumidifying roller far away from the penetrating end of the central cylinder, and a transmission motor and a transmission bearing on the transmission motor are correspondingly arranged; the shaft axis of the transmission shaft of the transmission motor is superposed with the shaft axis of the dehumidification roller, and the bottom of the transmission motor is prefabricated with an installation foundation in advance;
step five, filling hot steam into the heating pipe, preheating the dehumidifying drum, outputting the gypsum slurry foam in the foam collecting tank after the temperature of the dehumidifying drum is constant, simultaneously starting a transmission motor to drive the dehumidifying drum to rotate, and scraping the powder subjected to moisture evaporation into a collector by a scraper in the rotating process;
step six, detecting the evaporated powder in the step five, and detecting whether the powder meets the requirement of the lowest water content or not, if the water content is too high, slowing down the speed of a rotating machine to increase the dehydration time or increasing the heating temperature, so as to meet the design requirement; and adjusting the collector if the falling powder has a splash phenomenon.
The invention has the beneficial effects that:
1) according to the invention, through the arrangement of the dehumidifying roller and the design of heating inside the dehumidifying roller, the gypsum slurry foam is dehydrated and pulverized, the adsorbability and the granularity of the gypsum slurry foam are effectively utilized, and the gypsum slurry foam is recycled or reused through the collector after being pulverized;
2) according to the invention, through the arrangement of the central cylinder, on one hand, the connection rotation of the dehumidification roller is ensured, on the other hand, the internal heating of the dehumidification roller is ensured, and the central cylinder and the support column are fixedly sleeved, so that the installation and the overall height adjustment can be conveniently carried out;
3) according to the invention, through the arrangement of the guide grooves, the outflow of gypsum slurry foam in the falling process is prevented, and the external boundary of the gypsum slurry foam in the rotating process is limited;
4) the invention can effectively combine the rotation of the dehumidifying roller and the scraping of the scraper, so that the gypsum slurry foam is easy to dehydrate and convenient to recover after being dehydrated into powder;
in addition, the components used in the invention are simple and easy to obtain, the operation is simple and convenient, the construction and manufacturing cost is low, and the foam powder after the gypsum slurry foam dehydration can be effectively recycled; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
FIG. 1 is a schematic illustration of a gypsum slurry foam pulverizing system;
FIG. 2 is a schematic view of a gypsum slurry foam internal heating pulverizing system;
fig. 3 is a schematic view of a heating pipe connection structure.
Reference numerals: 1-a foam collecting pool, 2-a material guide groove, 3-a dehumidifying roller, 4-a central cylinder, 41-a pipe inlet hole, 42-a pipe outlet hole, 5-a transmission motor, 6-a rotating bearing, 7-a connecting bearing, 8-a fixed sleeve, 9-a heating main pipe, 10-a support column, 11-a scraping plate, 12-a hanging rod, 13-a collector and 14-a heating pipe.
Detailed Description
Taking gypsum slurry foam generated in the flue gas desulfurization process of a certain power plant as an example, wherein the main component of the desulfurized gypsum is calcium sulfate dihydrate, and the water content of the gypsum foam is about 5 percent, so that the gypsum foam has certain adsorbability and corrosivity; after the gypsum slurry foam is collected, the gypsum slurry is treated by the powder making system of the invention.
As shown in fig. 1 and 2, the gypsum slurry foam pulverizing system comprises a feeding unit, a pulverizing unit and a collecting unit; the feeding unit comprises a foam collecting tank 1 and a material guide groove 2 connected to the side surface of the bottom of the collecting tank; the powder making unit comprises a dehumidifying roller 3, a central cylinder 4 penetrating into the dehumidifying roller 3, a transmission motor 5 connected to one end of the dehumidifying roller 3, a heating main pipe 9 connected to one end of the central cylinder 4 far away from the transmission motor 5, and a heating pipe 14 connected to the central cylinder 4 in the dehumidifying roller 3; the collecting unit comprises a scraper 11 and a collector 13 below the scraper 11; the lower part of the material guide groove 2 is connected with a dehumidifying drum 3, and the lower end part of the material guide groove 2 is in pressure joint with the outer side surface of the dehumidifying drum 3; the scraping plate 11 is arranged at the lower part of the vertical section of the dehumidifying drum 3, and the scraping plate 11 is arranged tangentially with the outer side surface of the dehumidifying drum 3.
In the embodiment, the foam collecting tank 1 is a trapezoidal tank with a large upper part and a small lower part, the cross section of the tank is rectangular, and the tank is made of stainless steel materials through welding; the foam collecting tank 1 is fixedly connected through a prefabricated steel supporting frame, and can also be fixedly connected through punching holes above the trapezoidal tank and hanging the holes on an upper structure; the bottom of the inner side of the foam collecting tank 1 is also provided with a discharging door, and the discharging door can be electrically controlled to adjust the opening and closing of the discharging door or the opening size according to the falling amount of the gypsum slurry foam.
In the embodiment, the material guide grooves 2 are a group of material guide plates symmetrically connected to two sides of the foam collecting pool 1, the two material guide plates are arranged in an inverted splayed shape, and the material guide plates are made of asbestos plates or steel plates; the upper part of the material guide plate is connected with the foam collecting tank 1 through bolts or welding, the lower end of the material guide plate is arc-shaped in the longitudinal direction, and the radian of the material guide plate is consistent with that of the outer side surface of the dehumidifying roller 3; the contact surface of the material guide plate and the dehumidifying roller 3 is sealed by a sealant or a sealing gasket; the horizontal distance between the bottom ends of the two material guide plates is smaller than the horizontal length of the dehumidifying drum 3.
In the embodiment, the dehumidifying drum 3 is welded by a 316L stainless steel plate, and two side seal plates are welded with the drum body of the dehumidifying drum 3; the center of the outer side face of a sealing plate at one end of the dehumidifying roller 3 is connected with a connecting bearing 7 through a bolt, the axis of the connecting bearing 7 is coincided with the axis of the dehumidifying roller 3, and the connecting bearing 7 is connected with a rotating bearing 6 on the transmission motor 5 in a matching mode. The lower part of the transmission motor 5 is connected with a concrete foundation through a bolt, and the height of the concrete foundation is adapted to the coupling of a rotating bearing 6 and a connecting bearing 7 on the transmission motor 5; the transmission motor 5 is a variable-frequency motor, so that the motor speed can be accurately controlled during subsequent construction.
In this embodiment, the central cylinder 4 is made of a steel pipe, and the diameter size ratio of the dehumidifying drum 3 to the central cylinder 4 is 1: 5; during the installation, the axis of the central cylinder 4 coincides with the axis of the dehumidifying drum 3, one end of the central cylinder 4 close to the transmission motor 5 is connected to the inner side of the dehumidifying drum 3 sealing plate through a bearing, and one end of the central cylinder 4 far away from the transmission motor 5 penetrates out of the dehumidifying drum 3 sealing plate and is connected with the heating main pipe 9. The central cylinder 4 is communicated with a heating main pipe 9, and the outer end part of the heating main pipe 9 is connected with steam heat exchange equipment; the central cylinder 4 is provided with two holes at the connecting section inside the dehumidifying roller 3, and the two holes are horizontally arranged; the two holes are respectively an inlet pipe hole 41 and an outlet pipe hole 42.
As shown in fig. 3, the heating main pipe 9 and the central cylinder 4 are connected with the heating pipe 14 in a penetrating way, and the heating pipe 14 is arranged in a multi-stage U-shaped pipe inside the dehumidifying drum 3; the heating pipe 14 penetrating and connecting the heating main pipe 9 and the central cylinder 4 can be a hard pipe or a soft pipe, and the heating pipe 14 is a multi-stage U-shaped pipe inside the dehumidifying roller 3; the heating pipe 14 penetrates into the central cylinder 4 from the heating main pipe 9 and then penetrates into the dehumidifying drum 3 from the upper pipe hole 41 of the central cylinder 4; the heating pipe 14 passes through the pipe outlet 42 of the central cylinder 4 in the dehumidifying drum 3, and then passes back to the heating main pipe 9 from the central cylinder 4.
In the embodiment, the end part of the penetrating section of the central cylinder 4 is connected with a fixed sleeve 8, and a support column 10 is connected below the fixed sleeve 8; the support column 10 is a steel column, and the support column 10 is connected with a ground foundation bolt or embedded. Hanging rods 12 are connected to the supporting columns 10 at intervals in the upward direction, the hanging rods 12 are steel pipes, and the hanging rods 12 are horizontally arranged and vertically sleeved with the supporting columns 10; the hanging rod 12 is connected with a scraper 11 through a bolt, the scraper 11 is made of polytetrafluoroethylene plates, and the scraper 11 is arranged at a position downwards of the intersection point of the extension line of the rotation direction of the dehumidifying drum 3 and the vertical line of the ground; two stages of scraping plates 11 are arranged at intervals, so that the scraped materials can directly fall into a collector 13; the collector 13 may be a trapezoidal box or a bag type collector depending on the throughput.
With reference to fig. 1 to 3, a construction method of a gypsum slurry foam pulverizing system is further described, which comprises the following specific steps:
determining the material, the volume and the size of a bottom outlet of a foam collecting tank 1 according to the overflow amount and the water content of gypsum slurry foam, wherein the volume of the foam collecting tank 1 is calculated according to the daily foam generation amount, and the hourly processing amount of the volume is greater than the foam output amount 1/3; the foam collecting tank 1 is fixedly installed by prefabricating a corresponding steel support frame, a discharge door is further installed inside the foam collecting tank 1, and the bottom end of the discharge door is not more than the end part of the foam collecting tank 1 when the discharge door is electrically controlled and opened; the two sides of the bottom end of the foam collecting pool 1 are connected with the material guide grooves 2 through bolts, the material guide grooves 2 are made of asbestos plates, the thickness of the material guide grooves is not less than 3 cm, and the material guide grooves and the dehumidifying roller 3 are sealed through sealing glue.
And step two, manufacturing the thin-wall dehumidifying roller 3 by 316L stainless steel, wherein the length of the dehumidifying roller 3 is greater than the width of an outlet at the bottom of the foam collecting pool 1, the height difference between the top of the dehumidifying roller 3 and the outlet end at the bottom of the foam collecting pool 1 after installation is suitable for falling of gypsum slurry foam, and the evaporated water quantity of the dehumidifying roller 3 meets the requirement of powder-making water content after the gypsum slurry foam is spread and rotates for less than one week perimeter when the diameter of the dehumidifying roller 3 is suitable for heating.
Step three, manufacturing a central cylinder 4, wherein the diameter of the central cylinder 4 is smaller than that of the dehumidifying drum 3 and can support the weight of the dehumidifying drum 3, a pipe inlet hole 41 and a pipe outlet hole 42 are pre-drilled on the central cylinder 4, a heating pipe 14 is connected in a penetrating manner before the central cylinder 4 is installed on the dehumidifying drum 3, the penetrating end of the central cylinder 4 is connected with a heating female pipe 9 after the central cylinder 4 is installed in the dehumidifying drum 3, the end part of the central cylinder 4 penetrates out to be sleeved with a fixing sleeve 8, and a support pillar 10 is erected; the supporting column 10 is embedded in the concrete foundation, a hanging rod 12 is welded on the supporting column 10, and a scraper 11 is connected on the hanging rod 12 through a bolt; when the device is installed, the scrapers 11 are adjusted to be attached to the surface of the dehumidifying drum 3, and multiple groups of the scrapers 11 can be arranged.
Step four, determining the heights of the dehumidifying roller 3 and the collector 13, wherein the heights are suitable for falling after the gypsum slurry foam is pulverized, so that the powder is prevented from splashing, and the collector 13 is a trapezoidal pool with a large upper part and a small lower part; a connecting bearing 7 is arranged on the outer side of the sealing plate on one side of the dehumidifying roller 3 far away from the penetrating end of the central cylinder 4, and a transmission motor 5 and a bearing on the transmission motor 5 are correspondingly arranged; wherein, the transmission shaft of the transmission motor 5 is superposed with the axis line of the dehumidifying drum 3, and the bottom of the transmission motor 5 is prefabricated with a concrete foundation in advance;
step five, filling hot steam into the heating pipe 14, preheating the dehumidifying drum 3, when the temperature of the dehumidifying drum 3 is constant, dropping and outputting the gypsum slurry foam in the foam collecting tank 1, simultaneously starting the transmission motor 5 to drive the dehumidifying drum 3 to rotate, and after the foam is contacted with the dehumidifying drum 3, performing solid-liquid separation on the foam, evaporating water, and adsorbing solid powder on the surface of the dehumidifying drum 3; during the rotation of the dehumidifying drum 3, the scraper 11 scrapes the powder after the evaporation of water into the collector 13.
Step six, detecting the evaporated powder in the step five, and detecting whether the powder meets the requirement of the lowest water content or not, if the water content is too high, slowing down the speed of a rotating machine to increase the dehydration time or increasing the heating temperature, so as to meet the design requirement; the collector 13 is adjusted if there is a splash phenomenon for the falling powder.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (5)
1. A gypsum slurry foam pulverizing system is characterized by comprising a feeding unit, a pulverizing unit and a collecting unit;
the feeding unit comprises a foam collecting tank (1) and a material guide groove (2) connected to the side surface of the bottom of the collecting tank;
the powder making unit comprises a dehumidifying roller (3), a central cylinder (4) penetrating into the dehumidifying roller (3), a transmission motor (5) connected to one end of the dehumidifying roller (3), a heating main pipe (9) connected to one end, far away from the transmission motor (5), of the central cylinder (4), and a heating pipe (14) connected to the central cylinder (4) in the dehumidifying roller (3);
the axis of the central cylinder (4) is coincident with the axis of the dehumidifying roller (3), one end of the central cylinder (4) close to the transmission motor (5) is connected to the inner side of a sealing plate of the dehumidifying roller (3), and one end of the central cylinder (4) far away from the transmission motor (5) penetrates through the sealing plate of the dehumidifying roller (3) and is connected with a heating main pipe (9);
the central cylinder (4) is communicated with the heating main pipe (9), two holes are formed in the connecting section of the central cylinder (4) in the dehumidifying roller (3), and the two holes are horizontally arranged; the two holes are respectively a pipe inlet hole (41) and a pipe outlet hole (42);
the collecting unit comprises a scraper (11) and a collector (13) below the scraper (11);
the lower part of the guide chute (2) is connected with a dehumidifying roller (3), and the lower end part of the guide chute (2) is in pressure joint with the outer side surface of the dehumidifying roller (3); the scraper (11) is arranged at the lower part of the vertical section of the dehumidifying drum (3), and the scraper (11) is arranged in a tangent way with the outer side surface of the dehumidifying drum (3);
the material guide grooves (2) are a group of material guide plates symmetrically connected to two sides of the foam collecting tank (1), the two material guide plates are arranged in an inverted splayed shape, and the horizontal distance between the bottom ends of the two material guide plates is smaller than the horizontal length of the dehumidifying roller (3);
the center of the outer side surface of a sealing plate at one end of the dehumidifying roller (3) is connected with a connecting bearing (7), and the connecting bearing (7) is matched and connected with a rotating bearing (6) on the transmission motor (5);
the heating main pipe (9) and the central cylinder (4) are internally connected with a heating pipe (14) in a penetrating way; the heating pipe (14) penetrates into the central cylinder (4) from the self-heating main pipe (9) and then penetrates into the dehumidifying drum (3) from an upper pipe hole (41) of the central cylinder (4); the heating pipes (14) are arranged in the dehumidifying roller (3) as multi-stage U-shaped pipes; the heating pipe (14) penetrates out of the dehumidifying roller (3) through the pipe outlet hole (42) of the central cylinder (4), and then penetrates back to the heating main pipe (9) through the central cylinder (4);
the contact surface of the central cylinder (4) and the dehumidifying roller (3) is connected through a bearing or a gap, and a fixed sleeve (8) is connected below the end part of the penetrating section of the central cylinder (4); the supporting column (10) is connected below the fixed sleeve (8), and the supporting column (10) is connected with a ground foundation.
2. A gypsum slurry foam pulverizing system as claimed in claim 1, wherein said foam collecting tank (1) is a trapezoidal tank with a large top and a small bottom, and has a rectangular cross section; the foam collecting tank (1) is connected or hung on the upper structure through a support frame, and a discharge door is further arranged at the bottom of the foam collecting tank (1).
3. The gypsum slurry foam pulverizing system of claim 1, wherein the dehumidifying drum (3) is a cylinder with closing plates on left and right sides and with a horizontal axis, and the dehumidifying drum (3) is made of a heat-conducting and corrosion-resistant material.
4. The gypsum slurry foam pulverizing system of claim 3, wherein the supporting columns (10) are connected with hanging rods (12) at intervals in the upper direction, and the hanging rods (12) are horizontally arranged and vertically connected with the supporting columns (10); the hanging rod (12) is connected with a scraper (11), and the hanging rod (12) is detachably connected with the scraper (11).
5. The construction method of the gypsum slurry foam pulverizing system according to any one of claims 1 to 4, characterized by comprising the following steps:
determining the material, the volume and the size of a bottom outlet of a foam collecting pool (1) according to the overflow amount and the water content of the gypsum slurry foam; the foam collecting tank (1) is fixedly installed by prefabricating a corresponding support frame, a discharge door is installed inside the foam collecting tank (1), the discharge door is electrically controlled, and the bottom end of the discharge door does not exceed the end part of the foam collecting tank (1) when the discharge door is opened; two sides of the bottom end of the foam collecting pool (1) are connected with material guide grooves (2), and the material guide grooves (2) are made of asbestos plates, and the thickness of the material guide grooves is not less than 3 cm;
secondly, a thin-wall dehumidifying roller (3) is made of heat-conducting and anti-corrosion materials, the length of the dehumidifying roller (3) is larger than the width of an outlet at the bottom of the foam collecting pool (1), the height difference between the top of the dehumidifying roller (3) and the outlet at the bottom of the foam collecting pool (1) after installation is suitable for falling of gypsum slurry foam, and the diameter of the dehumidifying roller (3) is suitable for meeting the requirement of the water content of powder making after the gypsum slurry foam is spread and rotates for less than one week when being heated;
step three, manufacturing a central cylinder (4), wherein the diameter of the central cylinder (4) is smaller than that of the dehumidifying roller (3) and can support the weight of the dehumidifying roller (3), an inlet pipe hole (41) and an outlet pipe hole (42) are arranged on the central cylinder (4) in advance, and a heating pipe (14) is connected in a penetrating manner before the central cylinder (4) is installed on the dehumidifying roller (3); after the central cylinder (4) is installed into the dehumidifying roller (3), the penetrating end of the central cylinder is connected with a heating main pipe (9), the penetrating end of the central cylinder (4) is sleeved with a fixed sleeve (8), and a support column (10) is supported; a hanging rod (12) is arranged on the supporting column (10), scrapers (11) are arranged on the hanging rod (12), the scrapers (11) are adjusted to be attached to the surface of the dehumidifying drum (3), and a plurality of groups of the scrapers (11) can be arranged;
step four, determining the heights of the dehumidifying roller (3) and the collector (13), wherein the heights of the dehumidifying roller and the collector are adapted to fall after the gypsum slurry foam is pulverized, so that the powder is prevented from splashing; wherein the collector (13) is a trapezoid pool with a large upper part and a small lower part; a connecting bearing (7) is arranged on the outer side of the sealing plate on one side of the dehumidifying roller (3) far away from the penetrating end of the central cylinder (4), and a transmission motor (5) and a transmission bearing on the transmission motor (5) are correspondingly arranged; the transmission shaft of the transmission motor (5) is superposed with the axis line of the dehumidification roller (3), and the bottom of the transmission motor (5) is prefabricated with an installation foundation in advance;
step five, hot steam is filled into the heating pipe (14), the dehumidifying roller (3) is preheated, when the temperature of the dehumidifying roller (3) is constant, gypsum slurry foam in the foam collecting pool (1) falls and is output, meanwhile, the transmission motor (5) is started to drive the dehumidifying roller (3) to rotate, and the scraping plate (11) scrapes powder after moisture evaporation into the collector (13) in the rotating process;
step six, detecting the evaporated powder in the step five, and detecting whether the powder meets the requirement of the lowest water content or not, if the water content is too high, slowing down the speed of a rotating machine to increase the dehydration time or increasing the heating temperature, so as to meet the design requirement; if the falling powder has a splash phenomenon, the collector (13) is adjusted.
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| CN111573033B (en) * | 2020-05-20 | 2023-01-17 | 国能龙源环保有限公司 | Automatic telescopic sealed apron device of sludge storage storehouse |
| CN117282114B (en) * | 2023-11-27 | 2024-03-12 | 常州润凯干燥科技有限公司 | Environment-friendly mother liquor drying equipment based on material structure is scraped to cylinder |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB163793A (en) * | 1920-02-24 | 1921-05-24 | Nils Testrup | Improvements relating to evaporation or distilling apparatus |
| CN2144125Y (en) * | 1992-12-18 | 1993-10-20 | 泰安市泰山区管件厂 | Calcining device for gypsum powder |
| JPH09201582A (en) * | 1996-01-26 | 1997-08-05 | Honda Motor Co Ltd | Drum drier |
| CN2438493Y (en) * | 2000-08-07 | 2001-07-11 | 冯庆 | Rolling drum knifing evaporating apparatus |
| US6833071B2 (en) * | 2002-05-15 | 2004-12-21 | Sean R. Duby | Displacement filter apparatus |
| FR2875721B1 (en) * | 2004-09-28 | 2007-09-21 | Sita Fd Sa | METHOD FOR DRYING EVAPORATION CONCENTRATES AND INSTALLATION FOR IMPLEMENTING THE METHOD |
| MX2008013689A (en) * | 2006-04-25 | 2009-01-27 | M I Drilling Fluids Internat B | Improvements to a transportable hydrocarbon-recovery unit. |
| CN101362027B (en) * | 2008-09-19 | 2011-06-29 | 无锡力马化工机械有限公司 | Rotary film evaporator |
| WO2013107522A1 (en) * | 2012-01-20 | 2013-07-25 | Hewlett-Packard Indigo B.V. | Concentrating an ink composition |
| CN204619400U (en) * | 2015-02-09 | 2015-09-09 | 徐燕 | A kind of drum dryer |
| CN205461280U (en) * | 2016-03-31 | 2016-08-17 | 杭州云众电力科技有限公司 | Novel filter cloth disc hydroextractor |
| CN206837528U (en) * | 2017-05-03 | 2018-01-05 | 淄博正河净水剂有限公司 | A kind of drum type drying apparatus |
| CN207055998U (en) * | 2017-05-13 | 2018-03-02 | 江苏蓝遥净水剂有限公司 | One kind production aluminium polychloride roller drier |
| CN107694136A (en) * | 2017-11-24 | 2018-02-16 | 浙江顺达新材料股份有限公司 | A kind of glue of belt scraping plate departs from bucket |
| CN108094592A (en) * | 2018-03-12 | 2018-06-01 | 常熟市谷雷特机械产品设计有限公司 | A kind of tea-leaf withering machine of adjustable baking time and stir-frying efficiency |
| CN108854124A (en) * | 2018-06-14 | 2018-11-23 | 江苏搏斯威化工设备工程有限公司 | High viscosity high boiler material drying device |
| CN110081673B (en) * | 2019-04-30 | 2020-08-18 | 江苏西典药用辅料有限公司 | Roller drying device |
| CN110496410A (en) * | 2019-09-09 | 2019-11-26 | 湖北金晟远环保科技股份有限公司 | A kind of polyaluminium chloride drum-type drying equipment |
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