Anti-blocking device for RPF blanking groove

Abstract

The utility model discloses an anti-blocking device for an RPF blanking groove, which comprises a PTA filter body, a discharge port is arranged on the PTA filter body, the lower surface of the PTA filter body is fixedly connected with the blanking groove, the blanking groove is communicated with the discharge port, the inner wall of the blanking groove is fixedly connected with a support frame, the inner surface of the support frame is fixedly connected with a hot process water nozzle, and the hot process water nozzle is communicated with the discharge port. The side surface of the discharging groove is connected with a hot process water pipe in a penetrating mode, the other end of the hot process water pipe is communicated with a hot process water spray head, the inner surface of the supporting frame is fixedly connected with a medium-pressure steam spray head, the side surface of the discharging groove is communicated with a medium-pressure steam pipe, and the other end of the medium-pressure steam pipe is communicated with the medium-pressure steam spray head. The pneumatic turbine vibrator can change material distribution, keep fluidity and crush large particles, the medium-pressure steam nozzle can blow off adhered materials, the heating tank body reduces the possibility of adhesion and caking, and the blanking tank is effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of terephthalic acid production, in particular to an RPF feed chute anti-blocking device. Background Art

[0002] PTA (terephthalic acid) is a key chemical raw material widely used in industries such as polyester fiber, plastics, and coatings. The RPF system primarily reduces the PT acid content in PTA products. The slurry is pumped from the bottom of the crystallizer tank to the filter slurry tank, where the drum is immersed. A pressure differential separates the mother liquor from the PTA solids, forming a PTA filter cake on the outer surface of the RPF drum. All filtrate is then pumped out. The filter cake is washed twice with a combination of recycled secondary wash liquid and filter cloth wash water. A steam / inert gas mixture removes moisture from the filter cake. The wet PTA cake is then separated from the filter cloth by a short-distance scraper. Backflush gas, applied to the drum by a control head, falls into the discharge trough and ultimately enters the PTA filter outlet rotary valve.

[0003] However, the filter often experiences clogged discharge chutes during operation, significantly impacting product quality. A clogged discharge chute significantly reduces the RPF separation efficiency, impacting downstream polyester production. Furthermore, the slurry-containing solution can cause significant environmental pollution. Therefore, during normal production, the filter discharge chute must be regularly cleaned to ensure normal and stable operation and product quality. However, the filter's complex structure complicates the cleaning process. Each machine's discharge chute is cleaned by opening and cleaning the filter's discharge area and the piping connecting its internal components. Cleaning efficiency depends on many factors, such as the quality of the PTA feed, the filter's rotational speed, and the duration of operation between flushing cycles. This undoubtedly increases maintenance costs, reduces production time, and consumes human and material resources. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an RPF discharge trough anti-blocking device. The pneumatic turbine vibrator is set up, which can change the distribution state of the material in the trough by vibration, thereby achieving the purpose of anti-blocking. Specifically, the material in the trough can maintain fluidity, avoid the accumulation of materials in the trough to form blockage, change the particle size distribution and shape of the material, and break large particles into small particles, further ensuring the fluidity of the material. The medium-pressure steam nozzle is set up to spray, and the medium-pressure steam has a high pressure and speed. After being sprayed out from the medium-pressure steam nozzle, a high-speed jet is formed. When this airflow flows in the trough, it will produce a sweeping effect, which can blow off the materials adhering to the trough wall or accumulated for a long time, keeping the trough body unobstructed. At the same time, the steam sweeping can also achieve the heating effect of the trough body, further reducing the possibility of adhesion, agglomeration and blockage of the materials inside the trough body. The addition of the steam nozzle can eliminate the need to use a large amount of process water to flush the discharge trough, resulting in a high moisture content of the filter cake and a decrease in the discharge temperature of the dryer.

[0005] The utility model also provides an RPF feed chute anti-blocking device, comprising: a PTA filter body, a discharge port provided on the PTA filter body, a feed chute fixedly connected to the lower surface of the PTA filter body, the feed chute being communicated with the discharge port, a support frame fixedly connected to the inner wall of the feed chute, a hot process water nozzle fixedly connected to the inner surface of the support frame, a hot process water pipe penetrating the side surface of the feed chute, the other end of the hot process water pipe being communicated with the hot process water nozzle, a medium-pressure steam nozzle fixedly connected to the inner surface of the support frame, a side surface of the feed chute being communicated with a medium-pressure steam pipe, the other end of the medium-pressure steam pipe being communicated with the medium-pressure steam nozzle, and four pneumatic turbine vibrators fixedly connected to the side surface of the feed chute.

[0006] According to the RPF feed chute anti-blocking device described in the utility model, the side surface of the PTA filter body is fixedly connected to the side plate, and the lower surface of the side plate is fixedly connected to the support leg.

[0007] According to the RPF feed chute anti-blocking device described in the utility model, the lower surface of the support leg is rotatably connected to a rotating shaft, and the side surface of the rotating shaft is fixedly connected to a connecting frame.

[0008] According to the RPF feed chute anti-blocking device described in the utility model, the inner surface of the connecting frame is rotatably connected to a rotating wheel, and the side surface of the rotating wheel is fixedly connected to an anti-slip pad.

[0009] According to the RPF feed chute anti-blocking device described in the utility model, the outer wall of the support leg is fixedly connected to the sleeve, and the inner surface of the sleeve is slidably connected to the pad.

[0010] According to the RPF feed chute anti-blocking device described in the utility model, an electric push rod is fixedly connected to the inner surface of the sleeve, and the other end of the electric push rod is fixedly connected to the upper surface of the cushion block.

[0011] According to the RPF feed chute anti-blocking device described in the utility model, a handle is fixedly connected to the side surface of the PTA filter body, and an anti-slip sleeve is fixedly connected to the side surface of the handle.

[0012] According to the RPF feed chute anti-blocking device described in the utility model, the outer walls of the hot process water pipe and the medium-pressure steam pipe are fixedly connected with connecting flanges, and the connecting flanges are provided with connecting holes.

[0013] Beneficial effects

[0014] 1. Compared with the prior art, the RPF feed chute anti-blocking device can change the distribution state of the material in the chute by means of vibration through the pneumatic turbine vibrator, thereby achieving the purpose of anti-blocking. Specifically, it can keep the material in the chute fluidity, avoid the accumulation of materials in the chute to form blockage, change the particle size distribution and shape of the material, break large particles into small particles, and further ensure the fluidity of the material. The medium-pressure steam nozzle is set to spray, and the medium-pressure steam has a high pressure and speed. After being ejected from the medium-pressure steam nozzle, a high-speed jet is formed. When this airflow flows in the chute, it will produce a sweeping effect, which can blow off the materials adhering to the chute wall or accumulated for a long time, keeping the chute body unobstructed. At the same time, the steam sweeping can also achieve the effect of heating the chute body, further reducing the possibility of material adhesion, agglomeration and blockage inside the chute body. In addition, the addition of the steam nozzle eliminates the need to use a large amount of process water to flush the feed chute, resulting in a high moisture content of the filter cake and a decrease in the discharge temperature of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is the main structural diagram of the RPF feed chute anti-blocking device of the utility model;

[0017] Figure 2 This is a right side cross-sectional structural diagram of the RPF feed chute anti-blocking device of the utility model;

[0018] Figure 3 This is a left side cross-sectional structural diagram of the RPF feed chute anti-blocking device of the utility model;

[0019] Figure 4 This is a bottom view of the structure of the RPF feed chute anti-blocking device of the utility model.

[0020] Legend:

[0021] 1. Handle; 2. Anti-slip cover; 3. Side panel; 4. Support leg; 5. Sleeve; 6. PTA filter body; 7. Discharge chute; 8. Pneumatic turbine vibrator; 9. Medium-pressure steam pipe; 10. Medium-pressure steam nozzle; 11. Discharge port; 12. Hot process water pipe; 13. Support frame; 14. Hot process water nozzle; 15. Rotating shaft; 16. Connecting frame; 17. Rotor; 18. Anti-slip pad; 19. Electric push rod; 20. Pad; 21. Connecting flange; 22. Connecting hole. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4 The embodiment of the utility model is an RPF feed chute anti-blocking device, which includes: a PTA filter body 6, which is a PTA filter, which is an existing mature technology and will not be described in detail in this document. The side surface of the PTA filter body 6 is fixedly connected with a side plate 3, and the lower surface of the side plate 3 is fixedly connected with a supporting leg 4. The lower surface of the supporting leg 4 is rotatably connected with a rotating shaft 15, and the side surface of the rotating shaft 15 is fixedly connected with a connecting frame 16. The inner surface of the connecting frame 16 is rotatably connected with a runner 17, and the side surface of the runner 17 is fixedly connected with an anti-slip pad 18. The outer wall of the supporting leg 4 is fixedly connected with a sleeve 5, and the inner surface of the sleeve 5 is slidably connected with a pad 20, which is used to be pushed downward by an electric push rod 19 and supported on the ground to lift the runner 17 to stabilize the equipment. The inner surface of the sleeve 5 is fixedly connected with an electric push rod 19, and the other end of the electric push rod 19 is fixedly connected to the upper surface of the pad 20.

[0024] A handle 1 is fixedly connected to the side surface of the PTA filter body 6, and an anti-slip sleeve 2 is fixedly connected to the side surface of the handle 1. A discharge port 11 is provided on the PTA filter body 6. A discharge chute 7 is fixedly connected to the lower surface of the PTA filter body 6 for discharging. The discharge chute 7 is communicated with the discharge port 11. A support frame 13 is fixedly connected to the inner wall of the discharge chute 7. A hot process water nozzle 14 is fixedly connected to the inner surface of the support frame 13 for spraying hot water into the interior of the discharge chute 7. A hot process water pipe 12 is connected through the side surface of the discharge chute 7 for connecting to an external hot process water pipeline.

[0025] The other end of the hot process water pipe 12 is connected to the hot process water nozzle 14. The inner surface of the support frame 13 is fixedly connected to the medium-pressure steam nozzle 10, which is used to spray steam into the interior of the lower trough 7. The side surface of the lower trough 7 is connected to the medium-pressure steam pipe 9, which is used to connect the external medium-pressure steam pipeline. The outer walls of the hot process water pipe 12 and the medium-pressure steam pipe 9 are fixedly connected to a connecting flange 21, and a connecting hole 22 is provided on the connecting flange 21. The other end of the medium-pressure steam pipe 9 is connected to the medium-pressure steam nozzle 10. The side surface of the lower trough 7 is fixedly connected to four pneumatic turbine vibrators 8. The pneumatic turbine vibrator 8 is provided with an eccentric turbine inside that rotates at high speed on the track to generate high-power centrifugal force, thereby generating vibration.

[0026] Working principle: When in use, the medium-pressure steam in the external pipeline enters the medium-pressure steam nozzle 10 through the medium-pressure steam pipe 9, and the medium-pressure steam nozzle 10 sprays steam into the lower trough 7. The steam can heat and soften the material, and the flow of steam can promote the flow of the material and prevent blockage. The eccentric turbine inside the pneumatic turbine vibrator 8 rotates at high speed on the track to generate high-power centrifugal force, thereby causing the lower trough 7 to vibrate. The vibration can loosen and fall off the material adhering to the inner wall of the lower trough 7, thereby keeping the lower trough 7 unobstructed.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A RPF feed chute anti-blocking device, characterized in that: include: A PTA filter body (6), wherein a discharge port (11) is provided on the PTA filter body (6), a feed chute (7) is fixedly connected to the lower surface of the PTA filter body (6), the feed chute (7) is communicated with the discharge port (11), a support frame (13) is fixedly connected to the inner wall of the feed chute (7), a hot process water nozzle (14) is fixedly connected to the inner surface of the support frame (13), and a hot process water pipe (12) is penetrated and connected to the side surface of the feed chute (7); The other end of the hot process water pipe (12) is connected to the hot process water nozzle (14), the inner surface of the support frame (13) is fixedly connected to the medium-pressure steam nozzle (10), the side surface of the feed chute (7) is connected to the medium-pressure steam pipe (9), the other end of the medium-pressure steam pipe (9) is connected to the medium-pressure steam nozzle (10), and the side surface of the feed chute (7) is fixedly connected to four pneumatic turbine vibrators (8).

2. The RPF feed chute anti-blocking device according to claim 1, characterized in that: The side surface of the PTA filter body (6) is fixedly connected to a side plate (3), and the lower surface of the side plate (3) is fixedly connected to a supporting leg (4).

3. The RPF feed chute anti-blocking device according to claim 2, characterized in that: The lower surface of the support leg (4) is rotatably connected to a rotating shaft (15), and the side surface of the rotating shaft (15) is fixedly connected to a connecting frame (16).

4. The RPF feed chute anti-blocking device according to claim 3, characterized in that: The inner surface of the connecting frame (16) is rotatably connected to a rotating wheel (17), and the side surface of the rotating wheel (17) is fixedly connected to an anti-slip pad (18).

5. The RPF feed chute anti-blocking device according to claim 2, characterized in that: The outer wall of the support leg (4) is fixedly connected to a sleeve (5), and the inner surface of the sleeve (5) is slidably connected to a cushion block (20).

6. The RPF feed chute anti-blocking device according to claim 5, characterized in that: An electric push rod (19) is fixedly connected to the inner surface of the sleeve (5), and the other end of the electric push rod (19) is fixedly connected to the upper surface of the cushion block (20).

7. The RPF feed chute anti-blocking device according to claim 1, characterized in that: A handle (1) is fixedly connected to the side surface of the PTA filter body (6), and an anti-slip sleeve (2) is fixedly connected to the side surface of the handle (1).

8. The RPF feed chute anti-blocking device according to claim 1, characterized in that: The outer walls of the hot process water pipe (12) and the medium-pressure steam pipe (9) are fixedly connected with a connecting flange (21), and the connecting flange (21) is provided with a connecting hole (22).

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