Powder screening device for cement production

Abstract

The utility model discloses a powder screening device for cement production, which relates to the technical field of cement production equipment, and comprises an upper box body and a lower box body, the upper box body is fixedly arranged on the lower box body and is communicated with the lower box body, a feed hopper is fixedly arranged on the upper wall surface of the upper box body, a material guide cylinder is fixedly arranged on the inner wall surface of the upper box body, and the material guide cylinder is communicated with the feed hopper. Materials enter the upper box body through the feeding hopper and fall onto the bearing funnel, the bearing funnel is driven by the vibration assembly to vibrate, and then fine materials are guided out through the filtering holes. The large-particle materials are blocked on the bearing funnel, after screening is completed, the screened materials are guided out through the discharging port, in the material guiding-out process, the second motor drives the spiral rod to rotate, then the materials can be guided out along the spiral blade path on the spiral rod, and the phenomenon that the materials are blocked in the guiding-out process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production equipment, in particular to a powder screening device for cement production. Background Art

[0002] Cement: Powdered hydraulic inorganic cementitious material. After adding water and stirring, it becomes a slurry, which can harden in the air or in water, and can firmly cement sand, stone and other materials together. The early mixture of lime and volcanic ash is very similar to the modern lime volcanic ash cement. It is used to cement the concrete made of crushed stone. After hardening, it is not only high in strength, but also resistant to erosion by fresh water or salt water. For a long time, it has been widely used as an important cementitious material in civil construction, water conservancy and other projects;

[0003] Cement needs to be screened by a screening machine during the production process. Although the current screening machines can discharge materials when in use, there are still some shortcomings when in use. When in use, the screened cement is generally discharged directly, and it is difficult to guide the cement, which causes cement to easily accumulate inside the equipment, causing cement to block the discharge mechanism. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a powder screening device for cement production, which solves the technical problem that the existing screening machine directly discharges the screened cement, making it difficult to guide the cement, resulting in cement easily accumulating inside the equipment and causing cement to block the discharging mechanism.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a powder screening device for cement production, comprising an upper box body and a lower box body, the upper box body is fixedly mounted on the lower box body and communicated with the lower box body, a feed hopper is fixedly mounted on the upper wall of the upper box body, a material guide cylinder is fixedly mounted on the inner wall of the upper box body, a vibration component is provided on the material guide cylinder, a load-bearing funnel is provided on the vibration component, the load-bearing funnel is located below the material guide cylinder, a plurality of filter holes are provided on the load-bearing funnel, a discharge pipe is fixedly mounted at the center of the load-bearing funnel, a pair of discharge ports are provided on the lower wall of the lower box body, a discharge pipe is fixedly mounted on the lower wall of the lower box body and located between the pair of discharge ports, the discharge pipe is inserted in the discharge pipe, a solenoid valve is installed on the discharge pipe, a conduit is fixedly mounted at the lower end of the discharge port, an inclined pipe is fixedly connected to the lower end of the conduit, a second motor is fixedly mounted on the outer lower wall of the inclined pipe, a driving end of the second motor passes through the inclined pipe and is fixedly mounted with a spiral rod, and the spiral rod is located in the conduit.

[0006] Preferably, the vibration component includes an inner cavity, which is opened in the material guide cylinder, and the first motors are fixedly installed on the two outer walls of the upper box body, respectively, the driving end of the first motor passes through the upper box body and the material guide cylinder and is located in the inner cavity, the driving end of the first motor is fixedly installed with a rotating shaft, the rotating shaft is rotatably installed on the inner wall of the inner cavity, a cam is fixedly installed on the rotating shaft, a through hole is opened on the lower wall of the inner cavity, a support rod is inserted in the through hole, the load-bearing funnel is fixedly connected between the support rods, a baffle is fixedly installed on the upper end of the support rod, a spring is fixedly installed between the baffle and the lower wall of the inner cavity, the spring is sleeved on the support rod, and the cam is in contact with the baffle.

[0007] Preferably, the upper box body is a cylindrical structure, and the lower box body is a rectangular parallelepiped structure.

[0008] Preferably, the upper wall surface of the material guiding cylinder is an inclined slope structure.

[0009] Preferably, support legs are fixedly installed at the four corners of the lower wall of the lower box body.

[0010] Beneficial Effects

[0011] The utility model provides a powder screening device for cement production, which solves the technical problem that the existing screening machine directly discharges the screened cement, is difficult to guide the cement, and causes the cement to easily accumulate inside the equipment, causing the cement to block the discharging mechanism. The material of the utility model enters the upper box body through the feed hopper and falls onto the carrying funnel. The carrying funnel is driven to vibrate by the vibration component, so that the fine material is discharged through the filter hole, and the large particles of material are blocked on the carrying funnel. When the screening is completed, the screened material is discharged through the discharge port. During the material discharge process, the screw rod is driven to rotate by the second motor, so that the material can be discharged along the spiral blade path on the screw rod, thereby preventing the material discharge from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of a powder screening device for cement production described in the utility model.

[0013] Figure 2 This is a schematic diagram of the structure of a vibration component of a powder screening device for cement production described in the utility model.

[0014] In the figure: 1. upper box body; 2. lower box body; 3. feed hopper; 4. guide cylinder; 5. load-bearing funnel; 6. filter hole; 7. discharge pipe; 8. discharge port; 9. discharge pipe; 10. solenoid valve; 11. inner cavity; 12. first motor; 13. rotating shaft; 14. cam; 15. support rod; 16. baffle; 17. spring; 18. guide tube; 19. inclined tube; 20. second motor; 21. screw rod; 22. support leg. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-2 The utility model provides a technical solution: a powder screening device for cement production, comprising an upper box body 1 and a lower box body 2, wherein the upper box body 1 is fixedly mounted on the lower box body 2 and communicated with the lower box body 2, a feed hopper 3 is fixedly mounted on the upper wall of the upper box body 1, a guide cylinder 4 is fixedly mounted on the inner wall of the upper box body 1, a vibration assembly is provided on the guide cylinder 4, a bearing funnel 5 is provided on the vibration assembly, the bearing funnel 5 is located below the guide cylinder 4, a plurality of filter holes are provided on the bearing funnel 5, a discharge pipe 7 is fixedly mounted at the center of the bearing funnel 5, a pair of discharge ports 8 are provided on the lower wall of the lower box body 2, a discharge pipe 9 is fixedly mounted on the lower wall of the lower box body 2 and located between the pair of discharge ports 8, the discharge pipe 7 is inserted in the discharge pipe 9, and a solenoid valve 10 is installed on the discharge pipe 7;

[0017] The material enters the upper box body 1 through the feed hopper 3 and falls onto the carrying funnel 5. The carrying funnel 5 is vibrated by the vibration component, so that the fine material is discharged through the filter hole, and the large particles of material are blocked on the carrying funnel 5. When the screening is completed, the solenoid valve 10 is opened, so that the material can enter the discharge pipe 9 along the discharge pipe 7, and the waste material is discharged through the discharge pipe 9. The screened material is discharged through the discharge port 8.

[0018] The present embodiment is further configured as follows: the vibration component includes an inner cavity 11, the inner cavity 11 is opened in the material guide cylinder 4, the two outer side walls of the upper box body 1 are respectively fixedly installed with a first motor 12, the driving end of the first motor 12 passes through the upper box body 1 and the material guide cylinder 4 and is located in the inner cavity 11, the driving end of the first motor 12 is fixedly installed with a rotating shaft 13, the rotating shaft 13 is rotatably installed on the inner wall of the inner cavity 11, a cam 14 is fixedly installed on the rotating shaft 13, a through hole is opened on the lower wall of the inner cavity 11, a support rod 15 is inserted in the through hole, the carrying funnel 5 is fixedly connected between the support rods 15, a baffle 16 is fixedly installed on the upper end of the support rod 15, a spring 17 is fixedly installed between the baffle 16 and the lower wall of the inner cavity 11, the spring 17 is sleeved on the support rod 15, and the cam 14 is in contact with the baffle 16;

[0019] Start the first motor 12, the driving end of the first motor 12 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the cam 14 to rotate, so that the eccentric end of the cam 14 rotates to switch back and forth between the highest point and the lowest point, and the eccentric end of the cam 14 reciprocates to push the baffle 16, so that the baffle 16 pushes the support rod 15 (the spring 17 mounted on the support rod 15 plays a reset role) to reciprocate up and down, so that the supporting funnel 5 vibrates up and down.

[0020] This embodiment is further configured such that a conduit 18 is fixedly installed at the lower end of the discharge port 8, an inclined tube 19 is fixedly connected to the lower end of the conduit 18, a second motor 20 is fixedly installed on the outer lower wall of the inclined tube 19, a driving end of the second motor 20 passes through the inclined tube 19 and is fixedly installed with a screw rod 21, and the screw rod 21 is located in the conduit 18;

[0021] Start the second motor 20, and the driving end of the second motor 20 drives the screw rod 21 to rotate. The screw rod 21 is provided with a spiral blade, so that the material can move along the path of the spiral blade, so that the material at the discharge port 8 will not be blocked, and moves from the conduit 18 to the inclined pipe 19 and is discharged through the inclined pipe 19.

[0022] This embodiment is further configured such that the upper box body 1 is a cylindrical structure, and the lower box body 2 is a rectangular parallelepiped structure.

[0023] The present embodiment is further configured such that the upper wall surface of the material guiding cylinder 4 is an inclined slope structure.

[0024] This embodiment is further configured that support legs 22 are fixedly installed at the four corners of the lower wall of the lower box body 2

[0025] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0026] Embodiment: According to the attached drawings of the specification, the material enters the upper box body 1 through the feed hopper 3 and falls onto the carrying funnel 5. The first motor 12 is started, and the driving end of the first motor 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the cam 14 to rotate, so that the eccentric end of the cam 14 rotates to the highest point and the lowest point to switch back and forth, and the eccentric end of the cam 14 reciprocates to push the baffle 16, so that the baffle 16 pushes the support rod 15 (the spring 17 set on the support rod 15 plays a reset role) to reciprocate up and down, so that the carrying funnel 5 vibrates up and down, and then Fine materials are discharged through the filter holes, and large particles of materials are blocked on the carrying funnel 5. When the screening is completed, the solenoid valve 10 is opened to allow the materials to enter the discharge pipe 9 along the discharge pipe 7, and the waste materials are discharged through the discharge pipe 9. The second motor 20 is started, and the driving end of the second motor 20 drives the screw rod 21 to rotate. The screw rod 21 is provided with spiral blades, so that the materials can move along the path of the spiral blades, so that the materials at the discharge port 8 will not be blocked, and move from the conduit 18 to the inclined pipe 19, and are discharged through the inclined pipe 19.

[0027] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A powder screening device for cement production, comprising an upper box (1) and a lower box (2), characterized in that: The upper box body (1) is fixedly mounted on the lower box body (2) and communicates with the lower box body (2); a feed hopper (3) is fixedly mounted on the upper wall of the upper box body (1); a material guide cylinder (4) is fixedly mounted on the inner wall of the upper box body (1); a vibration assembly is provided on the material guide cylinder (4); a load-bearing funnel (5) is provided on the vibration assembly; the load-bearing funnel (5) is located below the material guide cylinder (4); a plurality of filter holes (6) are provided on the load-bearing funnel (5); a discharge pipe (7) is fixedly mounted at the center of the load-bearing funnel (5); a pair of discharge ports (8) are provided on the lower wall of the lower box body (2); A discharge pipe (9) is fixedly installed on the lower wall of the lower box body (2) and located between a pair of discharge ports (8); the discharge pipe (7) is inserted into the discharge pipe (9); a solenoid valve (10) is installed on the discharge pipe (7); a guide tube (18) is fixedly installed at the lower end of the discharge port (8); an inclined tube (19) is fixedly connected to the lower end of the guide tube (18); a second motor (20) is fixedly installed on the outer lower wall of the inclined tube (19); a driving end of the second motor (20) passes through the inclined tube (19) and is fixedly installed with a spiral rod (21); and the spiral rod (21) is located in the guide tube (18).

2. A powder screening device for cement production according to claim 1, characterized in that The vibration assembly comprises an inner cavity (11), the inner cavity (11) is opened in the material guide cylinder (4), the two outer side walls of the upper box body (1) are respectively fixedly mounted with a first motor (12), the driving end of the first motor (12) passes through the upper box body (1) and the material guide cylinder (4) and is located in the inner cavity (11), the driving end of the first motor (12) is fixedly mounted with a rotating shaft (13), the rotating shaft (13) is rotatably mounted on the inner wall of the inner cavity (11), and the rotating shaft (13) is A cam (14) is fixedly installed, a through hole is opened on the lower wall of the inner cavity (11), a support rod (15) is inserted in the through hole, the supporting funnel (5) is fixedly connected between the support rods (15), a baffle (16) is fixedly installed on the upper end of the support rod (15), a spring (17) is fixedly installed between the baffle (16) and the lower wall of the inner cavity (11), the spring (17) is sleeved on the support rod (15), and the cam (14) is in contact with the baffle (16).

3. A powder screening device for cement production according to claim 1, characterized in that The upper box body (1) is a cylindrical structure, and the lower box body (2) is a rectangular parallelepiped structure.

4. A powder screening device for cement production according to claim 1, characterized in that The upper wall surface of the material guide cylinder (4) is an inclined slope structure.

5. A powder screening device for cement production according to claim 1, characterized in that Support legs (22) are fixedly mounted at the four corners of the lower wall of the lower box body (2).

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