Sodium carboxymethylcellulose screening device

Abstract

The utility model discloses a sodium carboxymethyl cellulose screening device. The sodium carboxymethyl cellulose screening device structurally comprises a screening box and a discharging device, the screening box is provided with a feeding hopper and a discharging pipe, the discharging pipe is communicated with a feeding pipe of the discharging device, an upper-layer screening plate and a lower-layer screening plate are arranged in the screening box and are driven by different driving mechanisms to vibrate or turn over in a reciprocating mode, a sliding plate is further arranged below one end of the upper-layer screening plate, and a roller tangent to the sliding plate is arranged on the sliding plate. The sodium carboxymethyl cellulose screening device has the advantages that the installation is convenient, the structure is simple, and the sodium carboxymethyl cellulose can be efficiently screened.

Description

Technical Field

[0001] This utility model relates to the field of sodium carboxymethyl cellulose technology, and in particular to a sodium carboxymethyl cellulose screening device. Background Technology

[0002] Sodium carboxymethyl cellulose (CMC-Na) is an organic compound with the chemical formula [C6H7O2(OH)2OCH2COONa]n. It is a carboxymethylated derivative of cellulose and the most important ionic cellulose gum. CMC-Na is typically produced by reacting natural cellulose with caustic alkali and monochloroacetic acid. It is an anionic polymer with a molecular weight ranging from several thousand to millions. CMC-Na is a white fibrous or granular powder, odorless, tasteless, hygroscopic, and readily dispersed in water to form a transparent colloidal solution.

[0003] Existing sodium carboxymethyl cellulose production processes require screening, such as the screening device for sodium carboxymethyl cellulose production proposed in application number CN202123424924.9. However, its structure is relatively complex, its crushing ability for larger particles is relatively limited, and it lacks a discharge device. Summary of the Invention

[0004] To simplify the structure of the sodium carboxymethyl cellulose screening device, improve its crushing efficiency, and facilitate subsequent processing, this utility model proposes a sodium carboxymethyl cellulose screening device, the structure of which includes: a screening box and a discharge device; the screening box is provided with a feed hopper and a discharge pipe, the discharge pipe being connected to the feed pipe of the discharge device; the screening box is provided with upper and lower screen plates, each driven by a different driving mechanism to vibrate or reciprocate; a sliding plate is provided below one end of the upper screen plate, and a roller tangent to the sliding plate is provided on the sliding plate; wherein the screen aperture of the upper screen plate is larger than that of the lower screen plate.

[0005] Preferably, the screening box includes: a box body with four supporting legs at the lower corners, a discharge pipe at the bottom of the box body, and a feed hopper at the top; inside the box body, a platform is provided below the feed hopper, and a telescopic device is provided on the platform; the right side of the coarse screen plate is movably connected to the front and rear walls of the box body, and the left side of the coarse screen plate overlaps the telescopic part of the telescopic device, which drives the coarse screen plate to reciprocate around the right side of the coarse screen plate; a slide plate is provided on the lower right side of the coarse screen plate, and an active roller tangent to the upper surface of the slide plate is installed above the slide plate, with brush bristles on the lower right side of the active roller; a fine screen plate is provided below the slide plate, the length of which is greater than the sum of the lengths of the coarse screen plate and the slide plate, and a vibrator is installed at the bottom of the fine screen plate.

[0006] Preferably, the bottom of the box is formed by four trapezoidal plates, and a discharge pipe is fixed to the bottom of the trapezoidal plates.

[0007] Preferably, a drive motor is installed on the front side of the housing, and the shaft end of the drive motor drives the active roller to rotate. The end of the active roller away from the drive motor is movably connected to the inner wall of the housing.

[0008] Preferably, the platform is also equipped with two return springs, the upper ends of which are fixed to the bottom of the coarse screen plate.

[0009] Preferably, the surface of the drive roller has a roller sleeve made of rubber or silicone with a thickness of 1cm-2cm, and the outer surface of the roller sleeve has an orange peel texture or a frosted surface.

[0010] Preferably, the coarse screen plate, fine screen plate, and slide plate are all inclined, and the left end of each of them is higher than the right end.

[0011] Preferably, the discharge device includes: a chassis with several casters at the bottom, a feed pipe at the center of the chassis, a flange at the top of the feed pipe, a blower connected to one side of the feed pipe, and a conveying pipe connected to the other end of the feed pipe. The conveying pipe has several sections and is horizontally S-shaped. An exhaust pipe is installed on the highest section of the conveying pipe, and a waterproof and breathable membrane is fixed to the exhaust pipe. The outlet of the conveying pipe is vertically downward and extends beyond the chassis. A check valve structure is also provided inside the feed pipe. A connecting plate is provided at the end of the chassis near the outlet of the conveying pipe, and several mounting holes are provided on the connecting plate. The blower's air outlet is obliquely downward, and the blower is mounted on the chassis via mounting brackets on both sides. The check valve structure includes a horn tube, with a movable door hinged to one side of the smaller outlet at the bottom of the horn tube. A spring is installed on the upper part of the movable door opposite to the hinged side. The upper part of the spring is fixed to the outside of the horn tube, and the spring, in its natural state, causes the movable door to rest against the bottom of the horn tube.

[0012] In operation, the material is fed into the box through the feed hopper. It first passes through a coarse screen plate, with some material falling onto a fine screen plate. Larger particles fall onto a sliding plate as the coarse screen plate rotates and slopes. The active rollers on the sliding plate crush the larger particles, which are then brushed off by the brushes at the discharge end and fall back onto the fine screen plate. The fine screen plate vibrates to further reduce the size of the material. The feed pipe of the discharge device is connected to the discharge port of the screening box. Its check valve structure ensures that the blower strictly follows the path of the conveying pipe when pneumatically conveying the material. The exhaust pipe at the top of the conveying pipe is used to discharge some moisture, which can provide a certain drying effect while conveying the material, facilitating subsequent drying processing. This invention is easy to install, has a simple structure, and can efficiently screen sodium carboxymethyl cellulose. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the screening box structure.

[0016] Figure 3 This is a front view of the filter box.

[0017] Figure 4 This is a schematic diagram of the discharge device.

[0018] Figure 5 A three-dimensional diagram of the structure.

[0019] In the diagram: 1. Discharge device; 2. Screening box; 11. Chassis; 12. Casters; 13. Connecting plate; 14. Blower; 15. Feed pipe; 16. Flange; 17. Conveying pipe; 18. Exhaust pipe; 161. Horn pipe; 162. Movable door; 163. Spring; 201. Box body; 202. Support leg; 203. Discharge pipe; 204. Trapezoidal plate; 205. Brush; 206. Drive motor; 207. Platform; 208. Telescopic device; 209. Return spring; 210. Feed hopper; 211. Coarse screen plate; 212. Drive roller; 213. Slide plate; 214. Fine screen plate. Detailed Implementation

[0020] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0021] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0024] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0025] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. Example 1

[0026] The screening box 2 of this utility model comprises: a box body 201, with support legs 202 at the four corners of the lower part of the box body 201, a discharge pipe 203 at the bottom of the box body 201, and a feed hopper 210 at the top; inside the box body 201, a platform 207 is provided below the feed hopper 210, and a telescopic device 208 is provided on the platform 207; the right side of the coarse screen plate 211 is movably connected to the front and rear walls of the box body 201, and the left side of the coarse screen plate 211 overlaps the telescopic device 208 during telescopic movement. On the upper part, the telescopic device 208 drives the right side of the coarse screen plate 211 to reciprocate and rotate; a slide plate 213 is provided on the lower right side of the coarse screen plate 211, and an active roller 212 tangent to the upper surface of the slide plate 213 is installed above the slide plate 213. Brushes 205 are provided on the lower right side of the active roller 212; a fine screen plate 214 is provided below the slide plate 213. The length of the fine screen plate 214 is greater than the sum of the lengths of the orthographic projections of the coarse screen plate 211 and the slide plate 213. A vibrator is installed at the bottom of the fine screen plate 214.

[0027] Preferably, the bottom of the box 201 is formed by four trapezoidal plates 204, and the bottom of the trapezoidal plates 204 is fixed with a discharge pipe 203.

[0028] Preferably, a drive motor 206 is installed on the front side of the housing 201. The shaft end of the drive motor 206 drives the active roller 212 to rotate. The end of the active roller 212 away from the drive motor 206 is movably connected to the inner wall of the housing 201.

[0029] Preferably, the platform 207 is also equipped with two return springs 209, the upper ends of which are fixed to the bottom of the coarse screen plate 211.

[0030] Preferably, the surface of the active roller 212 has a roller sleeve made of rubber or silicone with a thickness of 1cm-2cm, and the outer surface of the roller sleeve has an orange peel texture or a frosted surface.

[0031] Preferably, the coarse screen plate 211, the fine screen plate 214, and the slide plate 213 are all inclined, and the left end of each of them is higher than the right end. Example 2

[0032] The discharge device 1 of this utility model includes: a chassis 11, a number of casters 12 at the bottom of the chassis 11, a feed pipe 15 at the middle of the top of the chassis 11, a flange 16 at the top of the feed pipe 15, a blower 14 connected to one side of the feed pipe 15, and a conveying pipe 17 connected to the other end of the feed pipe 15. The conveying pipe 17 has several sections and is horizontally S-shaped. An exhaust pipe 18 is installed on the highest section of the conveying pipe 17. A waterproof and breathable membrane is fixed to the exhaust pipe 18. The outlet of the conveying pipe 17 is vertically downward and extends beyond the chassis 11. A check valve structure is also provided inside the feed pipe 15.

[0033] Preferably, the chassis 11 is provided with a connecting plate 13 at one end near the outlet of the conveying pipe 17. The connecting plate 13 is provided with several mounting holes. The connecting plate is used to fix the storage container or to connect with the conveyor belt.

[0034] Preferably, the air outlet of the blower 14 is arranged obliquely downward, and the blower 14 is mounted on the chassis 11 by mounting brackets on both sides.

[0035] Preferably, the check valve structure includes a horn tube 161, with a movable door 162 hinged to one side of the smaller outlet at the bottom of the horn tube 161. A spring 163 is installed on the upper part of the movable door 162 opposite to the hinge side. The upper part of the spring 163 is fixed to the outside of the horn tube 161, and the spring 163 causes the movable door 162 to be attached to the bottom of the horn tube 161 in its natural state. Example 3

[0036] The sodium carboxymethyl cellulose screening device of this utility model includes: a screening box 2 and a discharge device 1; the screening box 2 is provided with a feed hopper 210 and a discharge pipe 203, and the discharge pipe 203 is connected to the feed pipe 15 of the discharge device 1.

[0037] In operation, the material is fed into the box through the feed hopper. It first passes through a coarse screen plate, with some material falling onto a fine screen plate. Larger particles fall onto a sliding plate as the coarse screen plate rotates and slopes. The active rollers on the sliding plate crush the larger particles, which are then brushed off by the brushes at the discharge end and fall back onto the fine screen plate. The fine screen plate vibrates to further reduce the size of the material. The feed pipe of the discharge device is connected to the discharge port of the screening box. Its check valve structure ensures that the blower strictly follows the path of the conveying pipe when pneumatically conveying the material. The exhaust pipe at the top of the conveying pipe is used to discharge some moisture, which can provide a certain drying effect while conveying the material, facilitating subsequent drying processing. This invention is easy to install, has a simple structure, and can efficiently screen sodium carboxymethyl cellulose.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sodium carboxymethyl cellulose screening device, characterized in that: include: The screening box and the discharge device are provided. The screening box is equipped with a feed hopper and a discharge pipe. The discharge pipe is connected to the feed pipe of the discharge device. The screening box is equipped with two layers of screen plates, each driven by a different drive mechanism to vibrate or reciprocate. A slide plate is also provided below one end of the upper screen plate. A roller tangent to the slide plate is provided on the slide plate. The screen hole diameter of the upper screen plate is larger than that of the lower screen plate.

2. The sodium carboxymethyl cellulose screening device according to claim 1, characterized in that: The screening box includes: a box body with four supporting legs at the lower corners, a discharge pipe at the bottom, and a feed hopper at the top; inside the box body, a platform is provided below the feed hopper, and a telescopic device is provided on the platform; the right side of the coarse screen plate is movably connected to the front and rear walls of the box body, and the left side of the coarse screen plate overlaps the telescopic part of the telescopic device, which drives the coarse screen plate to reciprocate around the right side; a slide plate is provided on the lower right side of the coarse screen plate, and an active roller tangent to the upper surface of the slide plate is installed above the slide plate, with bristles on the lower right side of the active roller; a fine screen plate is provided below the slide plate, the length of which is greater than the sum of the lengths of the coarse screen plate and the slide plate, and a vibrator is installed at the bottom of the fine screen plate.

3. The sodium carboxymethyl cellulose screening device according to claim 2, characterized in that: The bottom of the box is formed by four trapezoidal plates, and a discharge pipe is fixed to the bottom of the trapezoidal plates.

4. The sodium carboxymethyl cellulose screening device according to claim 3, characterized in that: A drive motor is installed on the front side of the housing. The shaft end of the drive motor drives the active roller to rotate. The end of the active roller away from the drive motor is movably connected to the inner wall of the housing.

5. The sodium carboxymethyl cellulose screening device according to claim 4, characterized in that: The platform is also equipped with two reset springs, the upper ends of which are fixed to the bottom of the coarse screen plate.

6. The sodium carboxymethyl cellulose screening device according to claim 5, characterized in that: The surface of the drive roller has a roller sleeve made of rubber or silicone with a thickness of 1cm-2cm, and the outer surface of the roller sleeve has an orange peel texture or a frosted surface.

7. The sodium carboxymethyl cellulose screening device according to claim 6, characterized in that: The coarse screen plate, fine screen plate, and slide plate are all inclined, and the left end of each of them is higher than the right end.

8. The sodium carboxymethyl cellulose screening device according to claim 7, characterized in that: The discharge device includes: a chassis with several casters at the bottom; a feed pipe at the center of the chassis with a flange at the top; a blower connected to one side of the feed pipe and a conveying pipe at the other end; the conveying pipe having several sections in a horizontal S-shape; an exhaust pipe at the highest section of the conveying pipe with a waterproof and breathable membrane fixed to it; and the outlet of the conveying pipe extending vertically downwards and beyond the chassis. A check valve is also provided inside the feed pipe. A connecting plate with several mounting holes is provided at the end of the chassis near the outlet of the conveying pipe. The blower's air outlet is angled downwards, and the blower is mounted on the chassis via mounting brackets on both sides. The check valve includes a horn tube with a hinged door at one side of the smaller outlet at the bottom. A spring is installed on the upper part of the side of the horn tube opposite the hinged side, and the upper part of the spring is fixed to the outside of the horn tube. In its natural state, the spring causes the horn tube to rest against the bottom of the horn tube.

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