Lime discharging structure of pulping machine

Abstract

The utility model relates to the technical field of lime slurrying and discharging devices, and provides a lime discharging structure of a slurrying machine, which comprises a powder bin and a slurry mixing tank, the powder bin is connected with the slurry mixing tank through a discharging assembly, the discharging assembly comprises a first discharging pipe, a declining pipe and a second discharging pipe, the upper end of the first discharging pipe is connected with the bottom of the powder bin, and the lower end of the first discharging pipe is connected with the lower end of the declining pipe. The lower end of the first discharging pipe is connected with the middle of a declination pipe, the lower end of the declination pipe is connected with the middle of a second discharging pipe, the upper end of the declination pipe is connected with an anti-blocking device used for pushing materials, the lower end of the second discharging pipe is connected with the top of the slurry mixing pool, and the upper end of the second discharging pipe is connected with a spraying device. Through the connection of the first discharging pipe, the downward inclined pipe and the second discharging pipe and the arrangement of the anti-blocking device and the spraying device, smooth discharging of lime powder from the powder bin to the slurry mixing pool is achieved, flying dust is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lime pulping feeding devices, in particular to a lime pulping machine lime feeding structure. Background Art

[0002] Lime pulping machine is a device that mixes lime and water to make lime slurry. It is usually composed of a concrete slurry tank, a feeding pipe, a discharge pipe, a water supply pipe and an agitator. Usually, the upper opening of the concrete water tank needs to be installed with a pipeline valve and an inspection port, which cannot be completely sealed, resulting in a large amount of dust during the lime dropping process, thus affecting environmental hygiene and the health of workers. At the same time, it was found in actual operation that the lower part of the powder silo connected to the feeding pipe will release heat during the lime slurrying process, causing the slurry to produce water vapor. The water vapor flows along the feeding pipe and finally reaches the bottom of the powder silo and is absorbed by the lime, causing the lime to agglomerate and block the feeding pipe, making it impossible to discharge the material normally. Utility Model Content

[0003] The utility model aims to provide a lime feeding structure for a pulping machine, which solves the above technical problems, reduces the generation of dust and improves production efficiency.

[0004] The embodiment of the utility model is realized through the following technical scheme: a lime feeding structure of a pulping machine includes a powder bin and a slurry mixing pool, the powder bin is connected to the slurry mixing pool through a feeding assembly, the feeding assembly includes a first feeding pipe, a downward-inclined pipe and a second feeding pipe, the upper end of the first feeding pipe is connected to the bottom of the powder bin, the lower end of the first feeding pipe is connected to the middle of the downward-inclined pipe, the lower end of the downward-inclined pipe is connected to the middle of the second feeding pipe, the upper end of the downward-inclined pipe is connected to an anti-blocking device for pushing materials, the lower end of the second feeding pipe is connected to the top of the slurry mixing pool, and the upper end of the second feeding pipe is connected to a spraying device.

[0005] Furthermore, the anti-blocking device includes a linear driver and a push plate, the linear driver is fixed to the upper end of the downward inclined tube, the push plate is arranged at the movable end of the linear driver, and the push plate is slidably matched with the inner wall of the downward inclined tube.

[0006] Furthermore, the spraying device includes a high-pressure spray head and a spray pipe for connecting to a water source, and the high-pressure spray head is arranged inside the upper end of the second unloading section.

[0007] Furthermore, the diameter of the second feed pipe is larger than the diameter of the second feed pipe.

[0008] Furthermore, a switch valve is arranged on the first discharge pipe.

[0009] Furthermore, an inspection port is provided on the top of the mixing tank at a side away from the second discharge pipe, and a filter screen is provided on the inspection port.

[0010] Furthermore, the slurry mixing tank is provided with a slurry outlet pipe and a stirrer for mixing the slurry.

[0011] The utility model has at least the following advantages and beneficial effects: through the connection of the first discharge pipe, the downward-inclined pipe and the second discharge pipe and the provision of the anti-blocking device and the spraying device, the lime powder is smoothly discharged from the powder silo to the mixing tank, the generation of dust is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A structural schematic diagram of a lime feeding structure of a pulping machine provided by the utility model;

[0014] Icons: 1-powder silo, 2-mixing tank, 3-discharging assembly, 31-first discharging pipe, 32-downward tilting pipe, 33-second discharging pipe, 4-anti-blocking device, 41-linear drive, 42-push plate, 5-spraying device, 51-high-pressure nozzle, 52-spraying pipe, 6-on-off valve, 7-inspection port, 8-discharging pipe, 9-agitator. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example

[0018] like Figure 1As shown, in this embodiment, a lime feeding structure of a pulping machine is mainly disclosed, and its main structure includes a powder bin 1 and a slurry mixing tank 2, the powder bin 1 is connected to the slurry mixing tank 2 through a feeding assembly 3, the feeding assembly 3 includes a first feeding pipe 31, a down-dip pipe 32 and a second feeding pipe 33, the upper end of the first feeding pipe 31 is connected to the bottom of the powder bin 1, the lower end of the first feeding pipe 31 is connected to the middle of the down-dip pipe 32, the lower end of the down-dip pipe 32 is connected to the middle of the second feeding pipe 33, the upper end of the down-dip pipe 32 is connected to an anti-blocking device 4 for pushing materials, the lower end of the second feeding pipe 33 is connected to the top of the slurry mixing tank 2, and the upper end of the second feeding pipe 33 is connected to a spraying device 5, specifically Lime powder is stored in a powder silo 1 which is clamped at a high place. A slurry mixing tank 2 is usually made of concrete material and half buried underground. When mixing and slurrying is required, the lime powder falls into the middle of a downward-inclined pipe 32 through a first down-feeding pipe 31 under the action of gravity, and then enters the middle of a second down-feeding pipe 33 along the inclination angle of the downward-inclined pipe 32. At the same time, water mist and lime powder are preliminarily mixed under the spraying of a spraying device 5 at the top of the second down-feeding pipe 33, thereby reducing the generation of dust. The anti-blocking device 4 can be used to regularly push and clean the lime agglomerated on the inner wall of the downward-inclined pipe 32, thereby realizing the smooth discharge of lime powder from the powder silo 1 to the slurry mixing tank 2 and improving production efficiency.

[0019] Furthermore, in a specific implementation, the anti-blocking device 4 provided in the embodiment of the utility model includes a linear driver 41 and a push plate 42. The linear driver 41 is fixed to the upper end of the down-tilt tube 32, and the push plate 42 is arranged at the movable end of the linear driver 41. The push plate 42 is slidably matched with the inner wall of the down-tilt tube 32. Specifically, the linear driver 41 can be a linear pneumatic cylinder, a linear hydraulic cylinder or a linear electric cylinder, which can be fixed to the upper end of the down-tilt tube 32 by means of a flange connection. The piston rod of the linear driver 41 is coaxially arranged with the central axis of the down-tilt tube 32, and the outer edge of the push plate 42 is in contact with the inner wall of the down-tilt tube 32, so as to push and scrape off the lime lumps adhered to the inner wall of the down-tilt tube 32, thereby effectively preventing blockage and ensuring the smooth discharge of materials.

[0020] Furthermore, in a specific implementation, the above-mentioned spraying device 5 provided in the embodiment of the utility model includes a high-pressure nozzle 51 and a spraying pipe 52 for connecting to a water source. The high-pressure nozzle 51 is arranged inside the upper end of the second discharge section. Under the flushing action of the high-pressure nozzle 51, the lime caking on the inner wall of the second discharge pipe 33 can be effectively avoided, and the uniformity and quality of the mixed slurry are also improved.

[0021] Furthermore, in a specific implementation, the diameter of the second discharge pipe 33 provided in the embodiment of the utility model is larger than the diameter of the second discharge pipe 33, which is conducive to the smooth discharge of lime powder and makes the initial mixing more uniform.

[0022] Furthermore, in a specific implementation, a switch valve 6 is provided on the above-mentioned first discharge pipe 31 provided in the embodiment of the utility model. It should be noted that when it is necessary to start the anti-blocking device 4 to push and clear the blockage, the switch valve 6 should be controlled to close first to prevent the lime powder from being retained between the push plate 42 and the linear drive 41. At the same time, the discharge flow rate and flow velocity can be conveniently controlled, thereby improving the flexibility and convenience of operation.

[0023] Furthermore, in a specific implementation, an inspection port 7 is provided at the top of the mixing tank 2 provided in the embodiment of the utility model, on the side away from the second discharge pipe 33, and a filter is provided on the inspection port 7 to facilitate maintenance and cleaning of the equipment. The setting of the filter can effectively prevent impurities from entering the equipment and reduce dust leakage.

[0024] Furthermore, in a specific implementation, the above-mentioned mixing tank 2 provided in the embodiment of the utility model is provided with a slurry discharge pipe 8 and an agitator 9 for mixing the slurry. The agitator 9 is located at the center of the mixing tank 2. The agitator 9 is composed of a rotating motor, a connecting rod and a paddle. The rotating motor is fixed to the top of the mixing tank 2, one end of the connecting rod is connected to the output shaft of the rotating motor, and the other end of the connecting rod is connected to the paddle. The slurry discharge pipe 8 and the connecting rod both extend to the bottom of the mixing tank 2. After being mixed evenly, they are sucked to the subsequent process through the slurry discharge pipe 8.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lime material feeding structure for a pulping machine, comprising a powder material bin (1) and a pulp mixing tank (2), characterized in that: The powder bin (1) is connected to the mixing tank (2) via a feeding assembly (3). The feeding assembly (3) comprises a first feeding pipe (31), a downward-inclined pipe (32) and a second feeding pipe (33). The upper end of the first feeding pipe (31) is connected to the bottom of the powder bin (1), the lower end of the first feeding pipe (31) is connected to the middle of the downward-inclined pipe (32), the lower end of the downward-inclined pipe (32) is connected to the middle of the second feeding pipe (33), the upper end of the downward-inclined pipe (32) is connected to an anti-blocking device (4) for pushing materials, the lower end of the second feeding pipe (33) is connected to the top of the mixing tank (2), and the upper end of the second feeding pipe (33) is connected to a spraying device (5).

2. A lime feeding structure for a pulping machine as claimed in claim 1, characterized in that: The anti-blocking device (4) comprises a linear drive (41) and a push plate (42), wherein the linear drive (41) is fixed to the upper end of the downward inclined tube (32), and the push plate (42) is arranged at the movable end of the linear drive (41), and the push plate (42) is slidably matched with the inner wall of the downward inclined tube (32).

3. The lime feeding structure of a pulping machine according to claim 1, characterized in that: The spray device (5) comprises a high-pressure spray head (51) and a spray pipe (52) for connecting to a water source, and the high-pressure spray head (51) is arranged inside the upper end of the second feed pipe (33).

4. The lime feeding structure of a pulping machine according to claim 1, characterized in that: The diameter of the second material discharge pipe (33) is greater than the diameter of the second material discharge pipe (33).

5. The lime feeding structure of a pulping machine according to claim 1, characterized in that: The first feed pipe (31) is provided with an on-off valve (6).

6. The lime feeding structure of a pulping machine according to claim 1, characterized in that: An inspection port (7) is provided on the top of the mixing tank (2) at a side away from the second discharge pipe (33), and a filter screen is provided on the inspection port (7).

7. The lime feeding structure of a pulping machine according to claim 1, characterized in that: The mixing tank (2) is provided with a slurry outlet pipe (8) and a stirrer (9) for mixing slurry.

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