阅读说明：本技术 一种高分子陶瓷管生产用离心浇铸工艺及其设备 (Centrifugal casting process and equipment for producing polymer ceramic tube ) 是由 金明成 金士伟 吴宝生 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种高分子陶瓷管生产用离心浇铸工艺及其设备,涉及陶瓷内衬钢管生产技术领域,该离心浇铸工艺中通过离心浇铸设备将熔融的高分子陶瓷复合材料复合到钢管的内壁上,形成一种复合钢管,工艺简单,生产成本低,且这种复合管充分发挥了钢管强度高、韧性好、耐冲击、焊接性能好的优点,同时又改善了了钢管具有的硬度低、耐磨性差以及耐腐蚀性差的缺点,从而提升了钢管的综合性能,提高其适用范围,促进钢管系列产品高速发展；该离心浇铸设备自动化程度高,高效完成钢管的离心浇铸,而且该设备对不同长度以及口径的钢管离心浇铸均适用,从而降低企业生产高性能复合管的设备成本,促进复合管的发展。(The invention discloses a centrifugal casting process and equipment for producing a polymer ceramic tube, and relates to the technical field of ceramic-lined steel tube production, wherein a molten polymer ceramic composite material is compounded on the inner wall of a steel tube by centrifugal casting equipment in the centrifugal casting process to form a composite steel tube, the process is simple, the production cost is low, the composite tube fully exerts the advantages of high strength, good toughness, impact resistance and good welding performance of the steel tube, and simultaneously improves the defects of low hardness, poor wear resistance and poor corrosion resistance of the steel tube, thereby improving the comprehensive performance of the steel tube, improving the application range of the steel tube and promoting the high-speed development of steel tube series products; the centrifugal casting equipment is high in automation degree, the centrifugal casting of the steel pipe is efficiently completed, and the equipment is suitable for the centrifugal casting of the steel pipes with different lengths and calibers, so that the equipment cost of producing high-performance composite pipes by enterprises is reduced, and the development of the composite pipes is promoted.)

1. A centrifugal casting process for producing a polymer ceramic tube is characterized by comprising the following steps:

the method comprises the following steps: heating the steel pipe subjected to sand blasting and rust removal at a high temperature of 420 ℃ by using an electric ring, then placing the steel pipe on a power-assisted roller (115) of centrifugal casting equipment for producing the polymer ceramic pipe, starting a conveyor (105), driving the steel pipe to enter an inner cavity of a casting box (101) by the conveyor (105) running through a bearing base (112), sealing the casting box (101) through a sealing box (106), and positioning the end part of a guide pipe (111) in an inner cavity at one end of the steel pipe;

step two: starting a stretching cylinder (103), extending a movable rod of the stretching cylinder (103) to push a mounting box (117) to slide on a fourth guide rail (116), so as to drive a power roller (120) to descend, clamping a steel pipe through the power roller (120) and a power-assisted roller (115), starting a driving motor (118), and driving the driving motor (118) to rotate through a driving gear shaft (122) and a driven gear shaft (121) to drive the power roller (120) to rotate, so as to drive the steel pipe to rotate;

step three: melting the melted polymer ceramic composite material, adding the melted polymer ceramic composite material into an inner cavity of a feeding hopper (102), enabling the melted polymer ceramic composite material to enter a storage tank (110) through the feeding hopper (102), and guiding the melted polymer ceramic composite material to enter a rotating steel pipe through a guide pipe (111), wherein the melted polymer ceramic composite material flows in the inner wall of the rotating steel pipe under the action of centrifugal force, so that the melted polymer ceramic composite material is uniformly distributed on the inner wall of the steel pipe;

step four: and (3) moving the steel pipe subjected to centrifugal casting of the molten polymer ceramic composite material out of the casting box (101) through a conveyor (105), and cooling the polymer ceramic composite material to form a polymer ceramic composite layer to obtain the polymer ceramic pipe.

2. The centrifugal casting equipment for producing the polymer ceramic tubes is characterized by comprising a casting box (101), a loading hopper (102), stretching cylinders (103), a conveyor (105), a guide pipe (111), a mounting box (117) and a bearing base (112), wherein the loading hopper (102) is installed at one end of the top of the casting box (101) in a penetrating mode, a plurality of groups of stretching cylinders (103) are installed at the top of the casting box (101) in an equal distance mode, the number of each group is two, each group of stretching cylinders (103) is provided with movable rods which penetrate through the top of the casting box (101) and are connected to the top of the mounting box (117), a first guide rail (104) and a conveyor (105) are installed at the bottom of one end, far away from the loading hopper (102), of the casting box (101), the conveyor (105) is located at the middle positions of the two first guide rails (104), and the bearing base (112) is installed on the conveyor (105), bearing base (112) and first guide rail (104) sliding connection, seal box (106) are installed to one side of bearing base (112), seal box (106) be cuboid box structure and with casting case (101) cooperation, be provided with storage tank (110) in the inner chamber of casting case (101), storage tank (110) cover is established on the bottom of loading hopper (102), honeycomb duct (111) are installed in the bottom slope of storage tank (110).

3. The centrifugal casting equipment for producing the polymeric ceramic tubes according to claim 2, wherein an installation chamber (107) is arranged at the bottom of an inner cavity at one end of the casting box (101), a jacking cylinder (108) is installed in the inner cavity of the installation chamber (107), a movable rod of the jacking cylinder (108) penetrates through the top of the installation chamber (107) and is connected to the bottom of a storage tank (110), one side of the storage tank (110) is slidably connected to a second guide rail (109), and the second guide rail (109) is installed on the inner wall of the casting box (101).

4. The centrifugal casting equipment for producing the polymeric ceramic tubes according to claim 2, wherein one end of the bearing base (112) close to the flow guide tube (111) is higher than one end far away from the flow guide tube (111), a plurality of third guide rails (113) are installed at the top of the bearing base (112) at equal intervals, a group of mounting seats (114) are installed on the third guide rails (113) in a sliding mode, the number of each group is two, the two mounting seats (114) of each group are symmetrically arranged at two ends of the third guide rails (113), fixing bolts are arranged at the bottom of the mounting seats (114), and the power-assisted rollers (115) are installed at the top of the mounting seats (114) in a rotating mode.

5. The centrifugal casting equipment for the production of the polymer ceramic tubes according to claim 2, wherein two ends of the mounting box (117) are respectively connected to two fourth guide rails (116) in a sliding manner, the two fourth guide rails (116) are respectively installed on the inner wall of the casting box (101), an arc-shaped groove is formed in the bottom of the mounting box (117), a power roller (120) is arranged in an inner cavity of the arc-shaped groove, the power roller (120) is rotatably installed between the two connecting plates (119), the connecting plates (119) are installed on two sides of the mounting box (117) through waist-shaped holes and bolts, and a driving motor (118) is installed on one side of the mounting box (117) through the waist-shaped holes and the bolts.

6. The centrifugal casting device for producing the polymeric ceramic tubes according to claim 5, wherein a driven gear shaft (121) is arranged in the middle of the power roller (120), the driven gear shaft (121) is connected with a driving gear shaft (122) through a toothed belt, the driving gear shaft (122) is sleeved on an output shaft of the driving motor (118), and the driving gear shaft (122) is located in an inner cavity of the mounting box (117).

Technical Field

The invention relates to the technical field of ceramic lining steel pipe production, in particular to a centrifugal casting process and equipment for producing a polymer ceramic pipe.

Background

The ceramic lining steel pipe is a ceramic lining composite steel pipe, and the composite pipe fully exerts the characteristics of high strength, good toughness, impact resistance and good welding performance of the steel pipe, overcomes the defects of low hardness, poor wear resistance and poor ceramic toughness of the steel pipe through the ceramic lining, has good comprehensive performances of wear resistance, heat resistance, corrosion resistance, mechanical impact resistance, thermal shock resistance, good weldability and the like, is an ideal wear-resistant and corrosion-resistant pipeline for conveying granular materials, grinding, corrosive media and the like, can be widely applied to industries such as electric power, metallurgy, mine, coal, chemical industry and the like, and is an ideal wear-resistant pipeline for conveying abrasive granular materials and corrosive media such as sand, stone, coal dust, ash, aluminum liquid and the like;

however, the existing ceramic lined steel pipe has complex process and high production cost, and the existing ceramic lined steel pipe production equipment cannot be suitable for the production of ceramic lined steel pipes with various specifications, so that the equipment cost is high, and therefore, a production process and equipment which are low in cost and suitable for the ceramic lined steel pipes with various specifications are urgently needed to solve the problems.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a centrifugal casting process for producing a polymer ceramic tube and equipment thereof: according to the centrifugal casting process, the molten polymer ceramic composite material is compounded on the inner wall of the steel pipe through the centrifugal casting equipment to form the composite steel pipe, so that the problems that the existing ceramic lining steel pipe is complex in process and high in production cost, and the existing ceramic lining steel pipe production equipment cannot be suitable for production of ceramic lining steel pipes of various specifications, so that the equipment cost is high are solved.

The purpose of the invention can be realized by the following technical scheme:

a centrifugal casting process for producing a polymer ceramic tube comprises the following steps:

the method comprises the following steps: heating the steel pipe subjected to sand blasting and rust removal at a high temperature of 420 ℃ by using a power ring, then placing the steel pipe on a power-assisted roller of centrifugal casting equipment for producing the polymer ceramic pipe, starting a conveyor, driving the steel pipe to enter an inner cavity of a casting box by the operation of the conveyor through a bearing base, sealing the casting box through a sealing box, and positioning the end part of a guide pipe in an inner cavity at one end of the steel pipe;

step two: starting a stretching cylinder, wherein a movable rod of the stretching cylinder extends to push the mounting box to slide on a fourth guide rail, so that a power roller is driven to descend, the steel pipe is clamped by the power roller and a power-assisted roller, a driving motor is started, and the driving motor runs to drive the power roller to rotate through a driving gear shaft and a driven gear shaft, so that the steel pipe is driven to rotate;

step three: melting the melted polymer ceramic composite material, adding the melted polymer ceramic composite material into an inner cavity of a feeding hopper, leading the melted polymer ceramic composite material into a storage tank through the feeding hopper, leading the melted polymer ceramic composite material into a rotating steel pipe through a guide pipe, and leading the melted polymer ceramic composite material to flow in the inner wall of the rotating steel pipe under the action of centrifugal force so as to be uniformly distributed on the inner wall of the steel pipe;

step four: and (3) moving the steel pipe subjected to centrifugal casting of the molten polymer ceramic composite material out of the casting box through a conveyor, and cooling the polymer ceramic composite material to form a polymer ceramic composite layer to obtain the polymer ceramic pipe.

As a further scheme of the invention: a centrifugal casting device for producing polymer ceramic tubes comprises a casting box, a feeding hopper, a plurality of groups of stretching cylinders, a conveyor, a flow guide tube, a mounting box and a bearing base, wherein the feeding hopper is installed at one end of the top of the casting box in a penetrating manner, the stretching cylinders are installed at the top of the casting box in a plurality of groups with the number being two, a movable rod of each group of stretching cylinders penetrates through the top of the casting box and is connected to the top of the mounting box, a first guide rail and the conveyor are installed at the bottom of one end, far away from the feeding hopper, of the casting box in a penetrating manner, the conveyor is located at the middle position of the two first guide rails, the bearing base is installed on the conveyor and is in sliding connection with the first guide rail, a sealing box is installed at one side of the bearing base, the sealing box is of a cuboid box body structure and is matched with the casting box, a storage tank is arranged in an inner cavity of the casting box, the storage tank sleeve is arranged on the bottom end of the charging hopper, and the bottom of the storage tank is obliquely provided with the guide pipe.

As a further scheme of the invention: the bottom of the inner cavity of one end of the casting box is provided with an installation chamber, a jacking cylinder is installed in the inner cavity of the installation chamber, a movable rod of the jacking cylinder penetrates through the top of the installation chamber and is connected to the bottom of the storage tank, one side of the storage tank is slidably connected onto a second guide rail, and the second guide rail is installed on the inner wall of the casting box.

As a further scheme of the invention: the one end that the bearing base is close the honeycomb duct is higher than the one end of keeping away from the honeycomb duct, a plurality of third guide rail, a plurality of are installed to the top equidistance of bearing base equal slidable mounting has a set of mount pad on the third guide rail, and the quantity of every group is two, and two mount pad symmetries of every group set up the both ends at the third guide rail, the bottom of mount pad is provided with fixing bolt, the top of mount pad is rotated and is installed the helping hand gyro wheel.

As a further scheme of the invention: the both ends of mounting box are sliding connection respectively on two fourth guide rails, two the fourth guide rail is installed respectively on the inner wall of casting case, the arc wall has been seted up to the bottom of mounting box, be provided with the power gyro wheel in the inner chamber of arc wall, the power gyro wheel rotates and installs between two connecting plates, the connecting plate passes through waist type hole, the both sides at the mounting box are installed to the bolt, driving motor is installed through waist type hole, bolt to one side of mounting box.

As a further scheme of the invention: the middle position of the power roller is provided with a driven gear shaft, the driven gear shaft is connected with a driving gear shaft through a toothed belt, the driving gear shaft is sleeved on an output shaft of a driving motor, and the driving gear shaft is positioned in an inner cavity of the mounting box.

The invention has the beneficial effects that:

the invention relates to a centrifugal casting process for producing polymer ceramic tubes and equipment thereof, wherein a steel tube subjected to sand blasting and rust removal is heated at high temperature by using a power coil, then is placed on a power-assisted roller, the conveyor operates to drive the steel tube to enter an inner cavity of a casting box, the end part of a flow guide tube is positioned in the inner cavity of one end of the steel tube, a stretching cylinder pushes a mounting box to slide on a fourth guide rail so as to drive the power roller to descend, the steel tube is clamped by the power roller and the power-assisted roller, the power roller is driven to rotate by the operation of a driving motor, so as to drive the steel tube to rotate, a molten polymer ceramic composite material is added into an inner cavity of a charging hopper after being molten and finally flows into the rotating steel tube through the flow guide tube, and the molten polymer ceramic composite material flows in the inner wall of the rotating steel tube under the action of centrifugal force, so as to be uniformly distributed on the inner wall of the steel tube, cooling to form a polymer ceramic composite layer to obtain the polymer ceramic tube;

according to the centrifugal casting process, the molten polymer ceramic composite material is compounded on the inner wall of the steel pipe through the centrifugal casting equipment to form the composite steel pipe, the process is simple, the production cost is low, the advantages of high strength, good toughness, impact resistance and good welding performance of the steel pipe are fully exerted by the composite pipe, and the defects of low hardness, poor wear resistance and poor corrosion resistance of the steel pipe are improved, so that the comprehensive performance of the steel pipe is improved, the application range of the steel pipe is expanded, and the high-speed development of steel pipe series products is promoted;

this centrifugal casting equipment degree of automation is high, the centrifugal casting of high-efficient completion steel pipe forms compound pipe, storage tank in this equipment can remove on the second guide rail simultaneously, make the height of honeycomb duct can adjust, thereby be applicable to the steel pipe pouring of different bores, the mounting box can reciprocate simultaneously, the mount pad can be controlled left and right, further provide the condition to the steel pipe pouring of different bores, the bearing base of this equipment can remove simultaneously, the seal box is the cuboid structure, thereby provide the condition to the steel pipe pouring of different length, therefore, this equipment is all suitable for the steel pipe centrifugal casting of different length and bore, thereby reduce the equipment cost of enterprise production high performance compound pipe, promote the development of compound pipe.

Drawings

The invention will be further described with reference to the accompanying drawings;

FIG. 1 is a schematic structural view of a centrifugal casting apparatus for producing a polymer ceramic tube according to the present invention;

FIG. 2 is a view showing the connection of a hopper, a jacking cylinder, a storage tank and a flow guide pipe according to the present invention;

FIG. 3 is an internal side view of the casting box of the present invention;

FIG. 4 is a view showing the connection of a driving motor and a power roller in the present invention;

in the figure: 101. casting a box; 102. a hopper; 103. stretching the cylinder; 104. a first guide rail; 105. a conveyor; 106. a sealing box; 107. an installation chamber; 108. jacking a cylinder; 109. a second guide rail; 110. a material storage tank; 111. a flow guide pipe; 112. a load-bearing base; 113. a third guide rail; 114. a mounting seat; 115. a power-assisted roller; 116. a fourth guide rail; 117. mounting a box; 118. a drive motor; 119. a connecting plate; 120. a power roller; 121. a driven gear shaft; 122. driving the gear shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the present embodiment is a centrifugal casting process for producing a polymer ceramic tube, including the following steps:

the method comprises the following steps: heating the steel pipe subjected to sand blasting and rust removal at a high temperature of 420 ℃ by using an electric ring, then placing the steel pipe on a power-assisted roller 115, starting a conveyor 105, driving the steel pipe to enter an inner cavity of a casting box 101 by the conveyor 105 through a bearing base 112, sealing the casting box 101 through a sealing box 106, and positioning the end part of a guide pipe 111 in the inner cavity at one end of the steel pipe;

step two: starting the stretching cylinder 103, wherein a movable rod of the stretching cylinder 103 extends to push the mounting box 117 to slide on the fourth guide rail 116, so as to drive the power roller 120 to descend, clamp the steel pipe through the power roller 120 and the power-assisted roller 115, start the driving motor 118, and drive the power roller 120 to rotate through the driving gear shaft 122 and the driven gear shaft 121 when the driving motor 118 operates, so as to drive the steel pipe to rotate;

step three: melting the melted polymer ceramic composite material, adding the melted polymer ceramic composite material into an inner cavity of a feeding hopper 102, enabling the melted polymer ceramic composite material to enter a storage tank 110 through the feeding hopper 102, guiding the melted polymer ceramic composite material to enter a rotating steel pipe through a guide pipe 111, and enabling the melted polymer ceramic composite material to flow in the inner wall of the rotating steel pipe under the action of centrifugal force, so that the melted polymer ceramic composite material is uniformly distributed on the inner wall of the steel pipe;

step four: the steel pipe after the centrifugal casting of the molten polymer ceramic composite material is moved out of the casting box 101 by the conveyor 105, and a polymer ceramic composite layer is formed after the polymer ceramic composite material is cooled, so that the polymer ceramic pipe is obtained.

Example 2:

referring to fig. 1-4, the present embodiment is a centrifugal casting apparatus for producing polymer ceramic tubes, including a casting box 101, a loading hopper 102, two stretching cylinders 103, a conveyor 105, a flow guide tube 111, a mounting box 117, and a load-bearing base 112, where the loading hopper 102 is installed at one end of the top of the casting box 101, the several groups of stretching cylinders 103 are installed at the top of the casting box 101 at equal intervals, each group has two stretching cylinders 103, a movable rod of each group of stretching cylinders 103 penetrates through the top of the casting box 101 and is connected to the top of the mounting box 117, a first guide rail 104 and the conveyor 105 are installed at the bottom of one end of the casting box 101 away from the loading hopper 102, the conveyor 105 is located at the middle position of the two first guide rails 104, the load-bearing base 112 is installed on the conveyor 105, the load-bearing base 112 is slidably connected to the first guide rail 104, a sealing box 106 is installed at one side of the load-bearing base 112, the sealing box 106 is in a rectangular box structure and is matched with the casting box 101, a storage tank 110 is arranged in an inner cavity of the casting box 101, the storage tank 110 is sleeved on the bottom end of the charging hopper 102, and a guide pipe 111 is obliquely arranged at the bottom of the storage tank 110; the draft tube 111 is an inclined long tube type with its end facing downward, and is suitable for centrifugal casting of steel tubes without calibers.

An installation chamber 107 is arranged at the bottom of an inner cavity at one end of the casting box 101, a jacking cylinder 108 is installed in the inner cavity of the installation chamber 107, a movable rod of the jacking cylinder 108 penetrates through the top of the installation chamber 107 and is connected to the bottom of a storage tank 110, one side of the storage tank 110 is slidably connected to a second guide rail 109, and the second guide rail 109 is installed on the inner wall of the casting box 101; the storage tank 110 can move on the second guide rail 109, so that the height of the guide pipe 111 can be adjusted, and the storage tank is suitable for pouring steel pipes with different calibers.

One end, close to the draft tube 111, of the bearing base 112 is higher than one end, far away from the draft tube 111, of the bearing base 112, a plurality of third guide rails 113 are installed on the top of the bearing base 112 at equal intervals, a group of installation bases 114 are installed on the plurality of third guide rails 113 in a sliding mode, the number of each group is two, the two installation bases 114 of each group are symmetrically arranged at two ends of each third guide rail 113, fixing bolts are arranged at the bottoms of the installation bases 114, and power-assisted rollers 115 are installed on the tops of the installation bases 114 in a rotating mode; the mounting box 117 can move up and down, and the mounting seat 114 can move left and right, so that conditions are provided for pouring steel pipes with different calibers.

Two ends of the mounting box 117 are respectively connected to the two fourth guide rails 116 in a sliding manner, the two fourth guide rails 116 are respectively mounted on the inner wall of the casting box 101, an arc-shaped groove is formed in the bottom of the mounting box 117, a power roller 120 is arranged in an inner cavity of the arc-shaped groove, the power roller 120 is rotatably mounted between the two connecting plates 119, the connecting plates 119 are mounted on two sides of the mounting box 117 through waist-shaped holes and bolts, and a driving motor 118 is mounted on one side of the mounting box 117 through the waist-shaped holes and the bolts; the bearing base 112 can be moved, and the sealing box 106 is of a cuboid structure, so that the sealing box is suitable for pouring steel pipes with different lengths.

A driven gear shaft 121 is arranged at the middle position of the power roller 120, the driven gear shaft 121 is connected with a driving gear shaft 122 through a toothed belt, the driving gear shaft 122 is sleeved on an output shaft of the driving motor 118, and the driving gear shaft 122 is positioned in the inner cavity of the mounting box 117.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.