A cyclone hopper with flushing function and a dry powder feeding system

Abstract

The utility model discloses a cyclone hopper with washing function and powder dry type adding system relates to powder adding technical field, can solve the problem that the cyclone hopper of prior art is easy to appear the adhesion powder of inner wall, even forms the problem of powder bridging. The utility model embodiment discloses a cyclone hopper with washing function, including hopper body and being located at the top cover subassembly of hopper body, and water pipe subassembly, be equipped with annular cavity in the top cover subassembly, be equipped with a plurality of annular distribution in the first spout of annular cavity bottom and with its intercommunication on the top cover subassembly, the water pipe subassembly includes spout water supply pipe and washing pipe, and the water outlet of spout water supply pipe is linked with annular cavity, and the water outlet of washing pipe is linked with the inside of hopper body, and the water inlet of spout water supply pipe is linked with washing pipe, still include the timing switch valve on washing pipe, and the timing switch valve is located at the upstream of washing pipe and spout water supply pipe intercommunication position.

Description

Technical Field

[0001] This utility model relates to the field of powder feeding technology, specifically to a vortex bucket with rinsing function and a dry powder feeding system. Background Technology

[0002] Dry powder injection technology using water jet injectors is a process that uses the negative pressure generated by high-pressure water flow to extract and transport powder, while simultaneously completing the mixing and injection process. Its core equipment is the water jet injector.

[0003] The dry powder dosing system integrates the three steps of "conveying," "mixing," and "dosing" into a simple and compact device, greatly simplifying the system process. It not only solves the problem of powder pre-dissolving but also meets safety and environmental protection requirements. Its typical system composition includes a dry powder dosing unit, a hydraulic conveying and mixing unit, and a pipeline system. During the powder dosing process, the hopper in the dry powder dosing unit conveys the powder to the vortex bucket through a screw feeder. As the water jet ejects high-pressure water, the powder in the vortex bucket is drawn into the water jet by negative pressure to complete the dry dosing. However, during the process of the powder being drawn into the water jet, the high-pressure water jet causes some water mist to enter the vortex bucket, causing the powder to stick to the inner wall of the vortex bucket and even form powder bridging, affecting normal feeding. Furthermore, if there is no dry powder detection, it may cause dry powder to overflow, and if the gate valve is damaged, there is a risk of water overflowing into the hopper.

[0004] Therefore, the inventors designed a vortex bucket with rinsing function and a dry powder feeding system to solve the above problems, and thus, this application is filed. Utility Model Content

[0005] The purpose of this application is to provide a cyclone bucket with a rinsing function and a dry powder feeding system to solve the problem that existing cyclone buckets are prone to powder sticking to the inner wall and even forming powder bridging.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution: On the one hand, this application provides a vortex bucket with rinsing function, including a bucket body, a top cover assembly disposed on the top of the bucket body, and a water pipe assembly; The top cover assembly has an annular cavity inside, and the top cover assembly has several first nozzles arranged in a ring at the bottom of the annular cavity and communicating with it. The water pipe assembly includes a nozzle water supply pipe and a flushing pipe. The outlet end of the nozzle water supply pipe is connected to the annular cavity, the outlet end of the flushing pipe is connected to the inside of the bucket body, and the inlet end of the nozzle water supply pipe is connected to the flushing pipe. It also includes a timed switch valve installed on the flushing pipe, which is located upstream of the connection point between the flushing pipe and the nozzle water supply pipe.

[0007] Optionally, the bucket body includes a constant diameter feeding section and a reduced diameter swirl section coaxially and fixedly connected, with the constant diameter feeding section located at the top of the reduced diameter swirl section; The top cover assembly is located at the top of the equal-diameter feeding section; The flushing pipe is horizontally positioned and connected to the bottom of the equal-diameter feeding section; It also includes a liquid level detection sensor installed on the flushing pipe, and the liquid level detection sensor is located downstream of the connection between the flushing pipe and the nozzle water supply pipe, and the sensor probe of the liquid level detection sensor is located inside the flushing pipe.

[0008] Optionally, the water pipe assembly further includes a vortex tube, one end of which is connected to the interior along the tangential direction of the narrowed vortex section, and the other end is connected to an external high-pressure water circuit. The inlet end of the flushing pipe is connected to the vortex pipe; It also includes a main valve located on the cyclone pipe, which is situated upstream of the connection point between the flushing pipe and the cyclone pipe.

[0009] Optionally, the first nozzle is disposed at an angle toward the inner peripheral wall of the bucket body.

[0010] Optionally, the top cover assembly includes a top cover body, an outer ring plate and an inner ring plate fixed to the bottom of the top cover body, and an annular spray plate disposed at the bottom of the outer ring plate and the inner ring plate. The outer ring plate, the inner ring plate, and the ring spray plate are all circular and coaxially arranged, with the inner ring plate located inside the outer ring plate; The annular cavity is composed of a top cover body, an outer ring plate, an inner ring plate, and an annular spray plate. The first nozzle is located in the area directly below the bottom of the annular cavity of the annular spray plate.

[0011] Optionally, the top cover assembly further includes a probe mounting housing and a mounting housing cover plate; The probe mounting shell is fixed to the bottom of the top cover body, and the mounting shell cover plate is fixed to the bottom of the probe mounting shell; The probe mounting housing, the mounting housing cover plate, and the top cover body have an extended cavity communicating with the annular cavity; The mounting shell cover plate is provided with several second nozzles that communicate with the extended cavity; It also includes a level detection sensor for detecting material level, which is fixed to the main body of the top cover through a probe mounting shell.

[0012] Optionally, the second nozzles are arranged in a ring on the mounting cover plate, and several of the second nozzles are inclined toward the probe area of ​​the material level detection sensor.

[0013] Optionally, the top cover assembly further includes an annular baffle coaxially fixed to the bottom of the annular spray plate; The main body of the top cover is also provided with a water inlet and an observation port; The annular cavity inlet is connected to the inlet end of the nozzle water supply pipe; The top cover assembly also includes a transparent drawer, which is horizontally inserted into the observation port of the top cover body.

[0014] Optionally, the top of the main body of the top cover is provided with an installation step; The mounting step is provided with a slot, and the transparent drawer is inserted into the top cover body through the slot.

[0015] On the other hand, this application provides a dry powder feeding system, including a cyclone bucket with rinsing function as described above, and also includes a silo, a screw conveyor, a gate valve and an ejector; The bottom of the silo is connected to the feed inlet of the bucket body via a screw conveyor; The discharge port at the bottom of the hopper is connected to the jet port of the jet injector via a gate valve.

[0016] Beneficial effects of the utility model: 1. This application provides an annular cavity within the top cover assembly and a plurality of first nozzles arranged in an annular pattern. The annular cavity is connected to the nozzle water supply pipe of the water pipe assembly, and a timed switch valve is provided upstream of the water inlet end of the nozzle water supply pipe. This allows the application to periodically flush the inner peripheral wall of the hopper through the first nozzles, thereby effectively preventing powder from adhering to the inner wall and even forming powder bridging.

[0017] Second, the water pipe assembly of this application also includes a flushing pipe, and the sensor probe of the liquid level detection sensor is installed inside the flushing pipe. This means that when the timed switch valve of this application is opened, not only will the first nozzle flush the inner peripheral wall of the hopper, but the flushing pipe can also flush the sensor probe of the liquid level detection sensor, thus preventing the sensor probe of the liquid level sensor from failing.

[0018] Third, this application also provides a material level detection sensor on the top of the top cover assembly, which can detect the material position inside the hopper in real time. In order to prevent the material level detection sensor from failing, this application also provides an extended cavity and a second nozzle, so that when the timed switch valve of this application is opened, the sensor probe of the material level detection sensor can be flushed simultaneously to ensure the stability and accuracy of the material level data detection. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate this application and form part of this application, do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0021] Figure 2 This is a three-dimensional structural diagram of the top cover assembly in Embodiment 1 of this application.

[0022] Figure 3 This is a cross-sectional view of the top cover assembly in Embodiment 1 of this application.

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0024] Explanation of reference numerals in the attached figures: 1-Bucket body, 11-Equal diameter feeding section, 111-Overflow port, 12-Reduced diameter swirl section, 2-Top cover assembly, 21-Top cover body, 211-Water inlet, 212-Observation port, 213-Mounting step, 214-Slot, 22-Outer ring plate, 23-Inner ring plate, 24-Annular spray plate, 241-First nozzle, 25-Annular baffle, 26-Probe mounting shell, 27-Mounting shell cover plate, 271-Second nozzle, 28-Annular cavity, 29-Transparent draw plate, 3-Water pipe assembly, 31-Swirl tube, 32-Flushing pipe, 33-Nozzle water supply pipe, 41-Liquid level detection sensor, 42-Material level detection sensor, 51-Main switch valve, 52-Timed switch valve, 6-Hopper, 7-Screw conveyor, 8-Gate valve, 9-Ejector. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this invention / utility model, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1; like Figures 1 to 3 As shown, this embodiment provides a vortex bucket with rinsing function, including a bucket body 1, a top cover assembly 2 disposed on the top of the bucket body 1, and a water pipe assembly 3; The top cover assembly 2 has an annular cavity 28 inside, and the top cover assembly 2 has a plurality of first nozzles 241 arranged in a ring at the bottom of the annular cavity 28 and communicating with it. The water pipe assembly 3 includes a nozzle water supply pipe 33 and a flushing pipe 32. The outlet end of the nozzle water supply pipe 33 is connected to the annular cavity 28, the outlet end of the flushing pipe 32 is connected to the inside of the bucket body 1, and the inlet end of the nozzle water supply pipe 33 is connected to the flushing pipe 32. It also includes a timed switch valve 52 installed on the flushing pipe 32, which is located upstream of the connection point between the flushing pipe 32 and the nozzle water supply pipe 33.

[0027] In this embodiment, an annular cavity 28 is provided in the top cover assembly 2, and several first nozzles 241 are provided in annular arrangement. The annular cavity 28 is connected to the nozzle water supply pipe 33 of the water pipe assembly 3. A timed switch valve 52 is provided upstream of the water inlet end of the nozzle water supply pipe 33, so that the application can periodically rinse the inner peripheral wall of the bucket body 1 through the first nozzles 241, thereby effectively avoiding the problem of powder adhering to the inner wall or even forming powder bridging.

[0028] In this embodiment, the bucket body 1 includes a constant diameter feeding section 11 and a reduced diameter swirl section 12 that are coaxially and fixedly connected, with the constant diameter feeding section 11 located at the top of the reduced diameter swirl section 12. The top cover assembly 2 is located at the top of the equal diameter feeding section 11; The flushing pipe 32 is horizontally arranged and connected to the bottom of the equal-diameter feeding section 11; It also includes a liquid level detection sensor 41 installed on the flushing pipe 32, and the liquid level detection sensor 41 is located downstream of the connection between the flushing pipe 32 and the nozzle water supply pipe 33, and the sensor probe of the liquid level detection sensor 41 is located inside the flushing pipe 32.

[0029] In this embodiment, the sensor probe of the liquid level detection sensor 41 is disposed inside the flushing pipe 32. This ensures that when the timer valve 52 is opened, not only will the first nozzle 241 flush the inner wall of the bucket 1, but the flushing pipe 32 will also flush the sensor probe of the liquid level detection sensor 41, preventing the sensor probe from malfunctioning. Figure 1 As shown, in this embodiment, an overflow port 111 is also provided on the equal diameter feeding section 11. The horizontal height of the overflow port 111 is higher than the position where the flushing pipe 32 leads to the equal diameter feeding section 11, so that if an accident occurs and the liquid level inside the hopper 1 is too high, it can be discharged in time through the overflow port 111.

[0030] In this embodiment, the water pipe assembly 3 further includes a vortex tube 31, one end of which is connected to the interior of the reduced-diameter vortex section 12 along the tangential direction, and the other end is connected to the external high-pressure water circuit. The inlet end of the flushing pipe 32 is connected to the vortex pipe 31; It also includes a main switch valve 51 located on the swirling pipe 31, which is located upstream of the connection point between the flushing pipe 32 and the swirling pipe 31.

[0031] In this embodiment, the cyclone tube 31 is also equipped with an opening valve. Under normal circumstances, the cyclone tube 31 needs to continuously supply water to the inside of the narrowed diameter cyclone section 12, and it is connected to the narrowed diameter cyclone section 12 tangentially, so that the water flow from the cyclone tube 31 into the narrowed diameter cyclone section 12 can form an internal vortex in the narrowed diameter cyclone section 12, which is conducive to the material entering the ejector 9 downward. The cyclone tube 31, opening valve and other structures in this embodiment are existing structures and will not be described in detail here.

[0032] In this embodiment, the first nozzle 241 is inclined toward the inner peripheral wall of the bucket body 1 to ensure that the material adhering to the inner peripheral wall of the bucket body 1 can be washed away by the water flow sprayed from the first nozzle 241. The technician can set the inclination angle of the first nozzle 241 according to the requirements. No example is given here. In some embodiments, the first nozzle 241 can also adopt a trumpet-shaped design when it is set vertically. The technician can also adjust it according to the requirements. No further details are given here.

[0033] In this embodiment, the top cover assembly 2 includes a top cover body 21, an outer ring plate 22 and an inner ring plate 23 fixed to the bottom of the top cover body 21, and an annular spray plate 24 disposed at the bottom of the outer ring plate 22 and the inner ring plate 23. The outer ring plate 22, the inner ring plate 23, and the ring spray plate 24 are all circular and coaxially arranged, with the inner ring plate 23 located inside the outer ring plate 22; The annular cavity 28 is composed of a top cover body 21, an outer ring plate 22, an inner ring plate 23, and an annular spray plate 24. The first nozzle 241 is located in the area directly below the bottom of the annular cavity 28 of the annular spray plate 24.

[0034] In this embodiment, the top cover assembly 2 includes the aforementioned top cover body 21, outer ring plate 22 and inner ring plate 23, as well as ring spray plate 24, which can facilitate manufacturing and assembly by manufacturing personnel.

[0035] In this embodiment, the first nozzle 241 is provided in multiple and evenly distributed at the bottom of the annular cavity 28.

[0036] In this embodiment, the top cover assembly 2 further includes a probe mounting shell 26 and a mounting shell cover plate 27; The probe mounting shell 26 is fixed to the bottom of the top cover body 21, and the mounting shell cover plate 27 is fixed to the bottom of the probe mounting shell 26. The probe mounting housing 26, the mounting housing cover plate 27, and the top cover body 21 have an extended cavity that communicates with the annular cavity 28. The mounting shell cover plate 27 is provided with a plurality of second nozzles 271 that communicate with the extended cavity; It also includes a material level detection sensor 42 for detecting material level, which is fixed to the top cover body 21 through a probe mounting shell 26.

[0037] In this embodiment, a material level detection sensor 42 is also provided on the top of the top cover assembly 2, which can detect the material position inside the hopper 1 in real time. In order to avoid the failure of the material level detection sensor 42, this application also provides an extended cavity and a second nozzle 271, so that after the timed switch valve 52 of this embodiment is opened, the sensor probe of the material level detection sensor 42 can be flushed simultaneously to ensure the stability and accuracy of the material level data detection.

[0038] In this embodiment, the second nozzles 271 are arranged in a ring on the mounting shell cover plate 27, and several second nozzles 271 are inclined toward the probe area of ​​the material level detection sensor 42, so that the second nozzles 271 have a better rinsing effect on the sensor probe of the material level detection sensor 42. The specific tilt angle can be set by the technicians according to their needs, which will not be elaborated here.

[0039] In this embodiment, the top cover assembly 2 further includes an annular baffle 25 coaxially fixed to the bottom of the annular spray plate 24; The top cover body 21 is also provided with a water inlet 211 and an observation port 212; The annular cavity 28 is connected to the inlet 211 of the nozzle water supply pipe 33. The top cover assembly 2 also includes a transparent drawer 29, which is horizontally inserted into the observation port 212 of the top cover body 21. In this embodiment, by setting the observation port 212 on the top cover body 21 and including the transparent drawer 29, the top cover assembly 2 can facilitate maintenance personnel to observe the internal condition of the bucket 1 in order to deal with unexpected situations.

[0040] In this embodiment, the top of the top cover body 21 is provided with an installation step 213; The mounting step 213 is provided with a slot 214, and the transparent pull plate 29 is inserted into the top cover body 21 through the slot 214. In this embodiment, the slot 214 is provided at the observation port 212, so that after the transparent pull plate 29 is inserted into the slot 214, the transparent pull plate 29 seals the entire observation port 212, preventing water vapor and powder inside the bucket 1 from rushing out of the observation port 212.

[0041] Example 2: This embodiment provides a dry powder feeding system, including a cyclone bucket with flushing function as described above, and also includes a hopper 6, a screw conveyor 7, a gate valve 8, and an ejector 9; The bottom of the hopper 6 is connected to the feed inlet of the bucket body 1 via a screw conveyor 7; The discharge port at the bottom of the hopper 1 is connected to the jet port of the jet ejector 9 via a gate valve 8.

[0042] The structures in this embodiment, such as the hopper 6, screw conveyor 7, gate valve 8, and ejector 9, as well as... Figure 4 Components not marked with serial numbers are all existing components of the existing dry powder feeding system and will not be described in detail here.

[0043] The remaining structures of this embodiment are the same as those of Embodiment 1 above, and will not be described again here.

[0044] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A vortex bucket with rinsing function, characterized in that, It includes a bucket body (1) and a top cover assembly (2) located on top of the bucket body (1), and a water pipe assembly (3). The top cover assembly (2) has an annular cavity (28) inside, and the top cover assembly (2) has a plurality of first nozzles (241) arranged in a ring at the bottom of the annular cavity (28) and communicating with it. The water pipe assembly (3) includes a nozzle water supply pipe (33) and a flushing pipe (32). The outlet end of the nozzle water supply pipe (33) is connected to the annular cavity (28), the outlet end of the flushing pipe (32) is connected to the inside of the bucket body (1), and the inlet end of the nozzle water supply pipe (33) is connected to the flushing pipe (32). It also includes a timed switch valve (52) installed on the flushing pipe (32), which is located upstream of the connection point between the flushing pipe (32) and the nozzle water supply pipe (33).

2. A vortex bucket with rinsing function according to claim 1, characterized in that, The bucket body (1) includes a constant diameter feeding section (11) and a reduced diameter swirl section (12) that are coaxially fixedly connected. The constant diameter feeding section (11) is located at the top of the reduced diameter swirl section (12). The top cover assembly (2) is located on top of the equal diameter feeding section (11); The flushing pipe (32) is horizontally arranged and connected to the bottom of the equal-diameter feeding section (11); It also includes a liquid level detection sensor (41) installed on the flushing pipe (32), and the liquid level detection sensor (41) is located downstream of the connection between the flushing pipe (32) and the nozzle water supply pipe (33), and the sensor probe of the liquid level detection sensor (41) is located inside the flushing pipe (32).

3. A vortex bucket with rinsing function according to claim 2, characterized in that, The water pipe assembly (3) also includes a vortex tube (31), one end of which is connected to the interior along the tangential direction of the narrowed vortex section (12), and the other end is connected to the external high-pressure water circuit. The inlet end of the flushing pipe (32) is connected to the vortex pipe (31); It also includes a main valve (51) on the swirling pipe (31), which is located upstream of the connection point between the flushing pipe (32) and the swirling pipe (31).

4. A vortex bucket with rinsing function according to claim 1, characterized in that, The first nozzle (241) is disposed at an angle toward the inner peripheral wall of the bucket body (1).

5. A vortex bucket with rinsing function according to claim 1, characterized in that, The top cover assembly (2) includes a top cover body (21), an outer ring plate (22) and an inner ring plate (23) fixed to the bottom of the top cover body (21), and an annular spray plate (24) disposed at the bottom of the outer ring plate (22) and the inner ring plate (23). The outer ring plate (22), the inner ring plate (23), and the ring spray plate (24) are all circular and coaxially arranged, with the inner ring plate (23) located inside the outer ring plate (22); The annular cavity (28) is composed of a top cover body (21), an outer ring plate (22), an inner ring plate (23), and an annular spray plate (24); The first nozzle (241) is located in the area directly below the bottom of the annular cavity (28) of the annular spray plate (24).

6. A vortex bucket with rinsing function according to claim 5, characterized in that, The top cover assembly (2) also includes a probe mounting housing (26) and a mounting housing cover plate (27). The probe mounting shell (26) is fixed to the bottom of the top cover body (21), and the mounting shell cover plate (27) is fixed to the bottom of the probe mounting shell (26); The probe mounting housing (26) and the mounting housing cover plate (27), as well as the top cover body (21), have an extended cavity communicating with the annular cavity (28); The mounting shell cover plate (27) is provided with several second nozzles (271) that communicate with the extended cavity. It also includes a material level detection sensor (42) for detecting material level, which is fixed to the top cover body (21) through a probe mounting shell (26).

7. A vortex bucket with rinsing function according to claim 6, characterized in that, The second nozzles (271) are arranged in a ring on the mounting shell cover plate (27), and several of the second nozzles (271) are inclined toward the probe area of ​​the material level detection sensor (42).

8. A vortex bucket with rinsing function according to claim 5, characterized in that, The top cover assembly (2) also includes an annular baffle (25) coaxially fixed to the bottom of the annular spray plate (24); The main body (21) of the top cover is also provided with a water inlet (211) and an observation port (212). The annular cavity (28) is connected to the inlet (211) of the nozzle water supply pipe (33); The top cover assembly (2) also includes a transparent drawer (29), which is horizontally inserted into the observation port (212) of the top cover body (21).

9. A vortex bucket with rinsing function according to claim 8, characterized in that, The top of the main body of the top cover (21) is provided with an installation step (213); The mounting step (213) is provided with a slot (214), and the transparent drawer (29) is inserted into the top cover body (21) through the slot (214).

10. A dry powder feeding system, comprising a vortex bucket with rinsing function as described in any one of claims 1 to 9, characterized in that, It also includes a hopper (6), a screw conveyor (7), a gate valve (8), and an ejector (9); The bottom of the hopper (6) is connected to the feed inlet of the bucket (1) via a screw conveyor (7); The discharge port at the bottom of the bucket (1) is connected to the jet port of the jet ejector (9) through a gate valve (8).

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