Tooth spherical rotary screen for producing catalyst and carrier

Abstract

The utility model relates to the technical field of drum screens, in particular to a drum screen for producing a tooth spherical catalyst and a carrier, which comprises a support frame, a screen drum which is obliquely arranged from top to bottom is arranged on the support frame, one side of the screen drum at the lower position is defined as the front side, and the screen drum is of a double-layer tubular structure and comprises an inner screen drum and an outer screen drum which are coaxially arranged. The inner screen drum is provided with a first screen for screening large ball materials; the outer screen drum comprises a front section and a rear section, the front section is provided with a second screen for screening hemispherical materials, and the rear section is provided with a third screen for screening small spherical materials; by arranging the double-layer screen drum structure, large ball materials generated in the catalyst production process are screened out through the inner screen drum and output through the front end of the inner screen drum, small ball materials are screened out through the front section of the outer screen drum, semi-ball materials are screened out through the rear section of the outer screen drum, and remaining finished product materials are output through the front end of the outer screen drum, so that slag materials and finished products can be screened at a time; therefore, the production efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drum screens, and particularly relates to a drum screen for producing tooth-shaped spherical catalysts and carriers. Background Art

[0002] Tooth-shaped spherical catalysts are catalysts with a special shape, whose appearance is similar to a spherical shape with edges, combining the advantages of spherical catalysts and special-shaped strip catalysts. However, during the production process of tooth-shaped spherical catalysts and carriers, abnormal slag materials may appear due to various reasons. Therefore, removing the abnormal slag materials from the finished materials has become an essential process in the production process.

[0003] For example, Chinese Patent Application Publication No. CN102825001A discloses a drum screen for powdery materials. The drum screen includes a housing, a cylindrical screen mesh, a rotating shaft, a feed inlet, and a discharge outlet. The cylindrical screen mesh is arranged in the middle of the housing, and the rotating shaft passes through the center of the cylindrical screen mesh, enabling the cylindrical screen mesh to rotate around the rotating shaft. The end of the feed inlet is connected to the cylindrical screen mesh, so that the powdery materials can rotate with the cylindrical screen mesh after entering the cylindrical screen mesh, or leak out of the cylindrical screen mesh due to gravity. The discharge outlet is arranged at the lower part of the housing.

[0004] However, the above drum screen still has certain defects: 1. The above drum screen can only screen two kinds of materials. When applied to the screening process of multiple materials, the screening operation needs to be repeated after replacing the screen mesh, and the screening efficiency is low; 2. The above drum screen is a shaft-driven drum screen, and the screen mesh is not easy to replace. Summary of the Utility Model

[0005] The utility model provides a drum screen for producing tooth-shaped spherical catalysts and carriers to solve the technical problem of low screening efficiency of slag materials generated during the catalyst production process.

[0006] To solve the above problems, the drum screen for producing tooth-shaped spherical catalysts and carriers provided by the utility model adopts the following technical solutions:

[0007] A drum screen for producing tooth-shaped spherical catalysts and carriers includes a support frame. A screen cylinder is arranged on the support frame and is inclined and placed from top to bottom. The lower side of the screen cylinder is defined as the front side. The screen cylinder is a double-layer tubular structure, which includes an inner screen cylinder and an outer screen cylinder arranged coaxially. The inner screen cylinder has a first screen mesh for screening large ball materials.

[0008] The outer screen cylinder includes a front section and a rear section. The front section has a second screen mesh for screening hemispherical materials, and the rear section has a third screen mesh for screening small ball materials.

[0009] Its beneficial effects are as follows: By setting up a double-layer sieve cylinder structure, the large ball materials generated in the catalyst production process are screened out through the inner sieve cylinder and output from the front end of the inner sieve cylinder, the small ball materials are screened out in the front section of the outer sieve cylinder, the hemispherical materials are screened out in the rear section of the outer sieve cylinder, and the remaining finished materials are output from the front end of the outer sieve cylinder. Thus, the slag materials and the finished products can be screened at one time, effectively improving the production efficiency.

[0010] Furthermore, a plurality of rod-shaped brackets perpendicular to the inner peripheral surface of the outer sieve cylinder and the outer peripheral surface of the inner sieve cylinder are fixedly arranged between the outer sieve cylinder and the inner sieve cylinder, and the brackets are used to support the inner sieve cylinder.

[0011] Furthermore, both the outer peripheral surface of the outer sieve cylinder and the inner peripheral surface of the inner sieve cylinder have a plurality of skeletons extending along the circumferential and axial directions to support and fix the sieve mesh.

[0012] Furthermore, the support frame has two columns of support rods extending vertically and arranged in parallel. Each column of support rods has an inclined rod extending obliquely forward from top to bottom at the upper end, and each column of support rods has a stabilizing rod extending in the front-rear direction at the lower end. Cross bars extending in the left-right direction are provided at both the upper and lower ends of the support rods on the front and rear sides to enhance the stability of the support frame.

[0013] Furthermore, there are two fixing rods parallel to the inclined rods between the cross bars at the upper ends on the front and rear sides. The fixing rods are located on the left and right sides of the sieve cylinder. A motor is provided at the front end of the left fixing rod, and a driven gear is provided at the front end of the right fixing rod.

[0014] Its beneficial effects are as follows: The gear transmission method makes it easy to replace the sieve mesh inside the sieve cylinder, improving the convenience of operation.

[0015] Furthermore, the motor has an output shaft at the rear end. A driving gear is sleeved on the output shaft. A support seat is provided on the fixing rod at the rear end of the motor, and the rear end of the output shaft is sleeved on the support seat to support the output shaft.

[0016] Furthermore, the front end of the outer peripheral surface of the outer sieve cylinder has a rack extending circumferentially for cooperating with the driving gear. The front end of the right fixing rod has a fixing seat. The driven gear is sleeved in the fixing seat along the front-rear direction to support the sieve cylinder and rotate in cooperation with the rack.

[0017] Furthermore, the rear end of the outer peripheral surface of the outer sieve cylinder has a transmission block extending circumferentially and protruding outward. Support seats are provided on the cross bars at the upper rear side of the support frame on the left and right sides of the sieve cylinder. Rollers are sleeved on the support seats. The front side of the outer peripheral surface of the roller has a cam along the circumferential direction to push the front side of the transmission block and cooperate with the sieve cylinder to rotate.

[0018] Furthermore, two funnel-shaped material receiving hoppers are provided at the corresponding positions in the front section and the rear section at the lower end of the sieve cylinder, respectively for collecting hemispherical materials and small ball materials.

[0019] Further, a protective frame is provided on the diagonal rod. The protective frame includes a protective rod arranged in parallel with the diagonal rod, and the vertical rod and the protective rod are fixedly connected by a plurality of vertical rods perpendicular to the diagonal rod and arranged in parallel.

[0020] The beneficial effects of a drum sieve for producing tooth spherical catalysts and carriers provided by the present utility model are as follows:

[0021] 1. By providing a double-layer sieve drum structure, large ball materials generated during the catalyst production process are screened out through the inner sieve drum and output from the front end of the inner sieve drum, small ball materials are screened out in the front section of the outer sieve drum, hemispherical materials are screened out in the rear section of the outer sieve drum, and the remaining finished materials are output from the front end of the outer sieve drum. Thus, slag materials and finished products can be screened at one time, effectively improving production efficiency.

[0022] 2. The gear drive method makes it easy to replace the inner screen of the sieve drum, improving the convenience of operation. Description of the Drawings

[0023] By referring to the drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become easily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, where:

[0024] Figure 1 is a schematic structural diagram of a drum sieve for producing tooth spherical catalysts and carriers provided by the present utility model Figure 1 ;

[0025] Figure 2 is Figure 1 a partial enlarged schematic diagram at A in

[0026] Figure 3 is Figure 1 a partial enlarged schematic diagram at B in

[0027] Figure 4 is a schematic structural diagram of a drum sieve for producing tooth spherical catalysts and carriers provided by the present utility model Figure 2 ;

[0028] Figure 5 is Figure 4 a partial enlarged schematic diagram at C in

[0029] Figure 6 is a schematic structural diagram of a drum sieve for producing tooth spherical catalysts and carriers provided by the present utility model Figure 3 .

[0030] Description of the Reference Numerals:

[0031] 1. Support frame; 11. Support rod; 12. Diagonal rod; 13. Stabilizing rod; 14. Cross bar; 15. Fixed rod; 16. Support base; 17. Roller; 171. Cam; 18. Shaft body;

[0032] 2. Sieve drum; 21. Inner sieve drum; 22. Outer sieve drum; 221. Rack; 222. Transmission block; 23. Framework; 24. First sieve mesh; 25. Second sieve mesh; 26. Third sieve mesh; 27. Support;

[0033] 3. Material receiving hopper; 4. Motor; 41. Output shaft; 42. Driving gear; 43. Support; 44. Fixed seat; 45. Driven gear; 5. Protective frame; 51. Vertical rod; 52. Protective rod. Specific implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

[0035] The main idea of the present invention is to set a double-layer sieve drum 2 structure so that the large ball materials generated in the catalyst production process are screened out through the inner sieve drum 21 and output from the front end of the inner sieve drum 21. The front section of the outer sieve drum 22 is used to screen out small ball materials, and the rear section of the outer sieve drum 22 is used to screen out hemispherical materials. The remaining finished materials are output from the front end of the outer sieve drum 22, enabling the slag materials and the finished products to be screened at one time, effectively improving the production efficiency.

[0036] After introducing the basic principle of the present invention, the various non-limiting implementation manners of the present invention will be specifically introduced below. The number of any element in the accompanying drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0037] Next, with reference to several representative implementation manners of the present invention, the principle and spirit of the present invention will be elaborated in detail.

[0038] Embodiment 1 of a roller sieve for producing tooth-shaped spherical catalysts and carriers provided by the present invention:

[0039] As Figures 1 to 6As shown in the figure, the device includes a support frame 1 and a sieve cylinder 2. The support frame 1 is provided with a sieve cylinder 2 that is inclined from top to bottom. The lower side of the sieve cylinder 2 is defined as the front side. The sieve cylinder 2 is a double-layer tubular structure, which includes an outer sieve cylinder 22 and an inner sieve cylinder 21. There are multiple rod-shaped supports 27 perpendicular to the inner peripheral surface of the outer sieve cylinder 22 and the outer peripheral surface of the inner sieve cylinder 21 between the outer sieve cylinder 22 and the inner sieve cylinder 21, which are used to support the inner sieve cylinder 21.

[0040] The inner peripheral surface of the inner sieve cylinder 21 is provided with a first sieve mesh 24 for screening large ball materials. The large ball materials are output from the front end of the inner sieve cylinder 21. The outer sieve cylinder 22 includes a front section and a rear section. The front section is provided with a third sieve mesh 26 for screening hemispherical materials. The hemispherical materials are output from the lower end of the front section after being screened. The rear section is provided with a second sieve mesh 25 for screening small ball materials. The small ball materials are output from the lower end of the rear section after being screened.

[0041] In addition, both the outer sieve cylinder 22 and the inner sieve cylinder 21 have multiple plate-shaped skeletons 23 extending in the circumferential and axial directions. The front end of the outer peripheral surface of the outer sieve cylinder 22 has a circumferentially extending rack 221. The rear end of the outer peripheral surface of the outer sieve cylinder 22 has a circumferentially extending and outwardly protruding transmission block 222. The front and rear ends of the axially extending skeleton 23 are respectively fixedly connected to the rack 221 and the transmission block 222, which are used to support and fix the sieve mesh.

[0042] Next, the support frame 1 is introduced. The support frame 1 has two columns of rectangular support rods 11 extending vertically and arranged in parallel. The upper end of each column of support rods 11 has a rectangular inclined rod 12 extending obliquely from top to bottom to the front end. The lower end of each column of support rods 11 has a rectangular stabilizing rod 13 extending in the front and rear directions. Cross bars 14 extending in the left and right directions are provided at the upper and lower ends of the support rods 11 on the front and rear sides, which are used to enhance the stability of the support frame 1.

[0043] There are two rectangular fixing rods 15 parallel to the inclined rods 12 between the cross bars 14 at the upper ends on the front and rear sides. The fixing rods 15 are located on the left and right sides of the sieve cylinder 2. A motor 4 is provided at the front end of the left fixing rod 15. The rear end of the motor 4 has an output shaft 41. A driving gear 42 is sleeved on the output shaft 41. The driving gear 42 is used to mesh with the rack 221 to drive the sieve cylinder 2 to rotate. A support 43 is provided on the fixing rod 15 at the rear end of the motor 4. The rear end of the output shaft 41 is inserted through the support 43, which is used to support the output shaft 41. In addition, a driven gear 45 is provided at the front end of the right fixing rod 15. A fixing seat 44 fixed on the right fixing rod 15 is provided at its lower end. The fixing seat 44 has a shaft body 18. The driven gear 45 is inserted through the fixing seat 44 through the provided shaft body 18, which is used to support the sieve cylinder 2 and cooperate with the rack 221 to rotate.

[0044] On the cross bar 14 at the upper end of the rear side, plate-shaped support seats 16 are provided on both the left and right sides of the sieve cylinder 2. The support seats 16 are provided with shaft bodies 18. The sieve cylinder 2 is provided with rollers 17 through the shaft bodies 18. The rollers 17 are used to support the rear end of the sieve cylinder 2. On the front side of the outer peripheral surface of the roller 17, a cam 171 is circumferentially provided. The cam 171 is used to push the front side of the transmission block 222 and cooperate with the rotation of the sieve cylinder 2.

[0045] Finally, two funnel-shaped material receiving hoppers 3 are provided at the lower end of the sieve cylinder 2. The material receiving hoppers 3 are fixedly connected to the support frame 1. The two material receiving hoppers 3 correspond to the positions of the front section and the rear section respectively, and are respectively used to collect hemispherical materials and small spherical materials; On the two inclined rods 12, a protective frame 5 is also fixedly provided. The protective frame 5 is respectively fixedly connected by four rectangular vertical rods 51 perpendicular to the inclined rods 12 and a rectangular protective rod 52 parallel to the inclined rods 12. The protective rod 52 is fixedly connected to the vertical rod 51 and the inclined rod 12, and is used to play a protective role during the production process.

[0046] During use, first start the motor 4. The sieve cylinder 2 is driven to rotate by the driving gear 42. At this time, the material to be sieved is input from the rear end of the inner sieve cylinder 21. During the rotation of the sieve cylinder 2, the large spherical materials in the material to be sieved remain in the inner sieve cylinder 21 under the action of the first sieve mesh 24, and are output from the front end of the inner sieve cylinder 21 under the action of gravity; Other materials to be sieved then pass through the inner sieve cylinder 21 and enter the rear section of the outer sieve cylinder 22. Under the action of the second sieve mesh 25, the small spherical materials are sieved out and fall into the rear material receiving hopper 3. At this time, the remaining materials to be sieved enter the front section of the outer sieve cylinder 22. Under the action of the third sieve mesh 26, the hemispherical materials are sieved out and fall into the front material receiving hopper 3; Finally, the remaining finished materials are output from the outer sieve cylinder 22 under the action of gravity.

[0047] Embodiment 2 of a drum sieve for the production of tooth-shaped spherical catalysts and carriers provided by the present utility model:

[0048] The main difference from Embodiment 1 is:

[0049] In Embodiment 1, the support rod is a rectangular rod.

[0050] In this embodiment, the support rod can be set as a cylindrical rod or a polygonal rod.

[0051] Embodiment 3 of a drum sieve for the production of tooth-shaped spherical catalysts and carriers provided by the present utility model:

[0052] The main difference from Embodiment 1 is:

[0053] In Embodiment 1, the motor is located at the front end of the support frame.

[0054] In this embodiment, the motor can be arranged at the rear end of the support frame.

[0055] Based on the above description of this specification, those skilled in the art can also understand the following terms used, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. Terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present utility model.

[0056] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A drum screen for producing toothed spherical catalysts and carriers, comprising a support frame, on which a screen drum is arranged obliquely from top to bottom, and the side of the screen drum at the lower position is defined as the front side, characterized in that: The screen cylinder is a double-layer tubular structure, which includes an inner screen cylinder and an outer screen cylinder arranged coaxially, and the inner screen cylinder has a first screen mesh for screening large ball materials; The outer screen cylinder comprises a front section and a rear section, wherein the front section has a second screen for screening hemisphere materials, and the rear section has a third screen for screening small-sphere materials.

2. A drum screen for producing toothed spherical catalysts and carriers according to claim 1, characterized in that: A plurality of rod-shaped brackets perpendicular to the inner circumference of the outer sieve cylinder and the outer circumference of the inner sieve cylinder are fixedly arranged between the outer sieve cylinder and the inner sieve cylinder, and the brackets are used to support the inner sieve cylinder.

3. A drum screen for producing toothed spherical catalysts and carriers according to claim 2, characterized in that: The outer circumferential surface of the outer sieve cylinder and the inner circumferential surface of the inner sieve cylinder both have a plurality of skeletons extending in the circumferential direction and the axial direction to support and fix the sieve.

4. A drum screen for producing toothed spherical catalysts and carriers according to claim 3, characterized in that: The support frame has two rows of support rods extending up and down and arranged in parallel. The upper end of each row of support rods has an inclined rod extending obliquely from top to bottom toward the front end, and the lower end of each row of support rods has a stabilizing rod extending front and back. The upper and lower ends of the support rods located on the front and rear sides are provided with horizontal rods extending left and right to enhance the stability of the support frame.

5. A drum screen for producing toothed spherical catalysts and carriers according to claim 4, characterized in that: Two fixing rods parallel to the oblique rods are arranged between the front and rear sides and the upper ends of the cross rods. The fixing rods are located on the left and right sides of the screen drum. A motor is arranged at the front end of the left fixing rod, and a driven gear is arranged at the front end of the right fixing rod.

6. A drum screen for producing toothed spherical catalysts and carriers according to claim 5, characterized in that: The rear end of the motor is provided with an output shaft, a driving gear is passed through the output shaft, a support is provided on the fixing rod at the rear end of the motor, and the rear end of the output shaft is passed through the support to support the output shaft.

7. A drum screen for producing toothed spherical catalysts and carriers according to claim 6, characterized in that: The front end of the outer peripheral surface of the outer screen cylinder has a circumferentially extending rack for cooperating with the driving gear, and the front end of the right fixed rod has a fixed seat. The driven gear is inserted into the fixed seat along the front-to-back direction to support the screen cylinder and cooperate with the rack to rotate.

8. The drum screen for producing toothed spherical catalysts and carriers according to claim 7, characterized in that: The rear end of the outer peripheral surface of the outer screen drum has a transmission block extending in the circumferential direction and protruding outward. The cross bar at the upper end of the rear side of the support frame is provided with support seats on the left and right sides of the screen drum. Rollers are passed through the support seats. The front side of the outer peripheral surface of the roller has a cam in the circumferential direction to push the front side of the transmission block and cooperate with the rotation of the screen drum.

9. A drum screen for producing toothed spherical catalysts and carriers according to claim 8, characterized in that: The lower end of the screen cylinder is provided with two funnel-shaped collecting hoppers at corresponding positions of the front section and the rear section, which are used to collect the semi-ball material and the small ball material respectively.

10. A drum screen for producing toothed spherical catalysts and carriers according to claim 9, characterized in that: The oblique rod is provided with a protection frame, which includes a protection rod arranged in parallel with the oblique rod. The vertical rod and the protection rod are fixedly connected by a plurality of vertical rods which are perpendicular to the oblique rod and arranged in parallel.

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