A gypsum raw material screening device

Abstract

The utility model discloses a kind of gypsum raw material screening devices, including base, the inside of the base is provided with screening cylinder, the rear side of the screening cylinder is rotatably connected with the rear side of base inner wall, the upper side of the front of the base is fixedly connected with servo motor by support, the output of the servo motor is penetrated to the inside of base and is fixedly connected with the front of screening cylinder by speed reducer.The utility model is driven by servo motor by being set with rotatable screening cylinder in base, and the inclination of screening cylinder can be realized, and it is convenient to discharge and classify and collect different granularity raw materials;The setting of coarse screen plate and fine screen plate realizes multistage screening, and the granularity of gypsum raw material can be accurately graded, to ensure that the granularity of raw material entering production link is uniform and consistent;Discharge port and closure cap cooperate double-end electric telescopic rod, and the discharge of different granularity raw materials can be conveniently controlled;The slope of screening cylinder bottom and fine material discharge valve pipe facilitate the discharge and collection of fine material.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen peroxide foamed gypsum technology, specifically a gypsum raw material screening device. Background Technology

[0002] In the field of building materials, hydrogen peroxide foamed gypsum, as a novel functional material, has shown great application potential in building insulation and interior decoration due to its excellent properties such as lightweight, heat insulation, and sound insulation. It utilizes the decomposition of hydrogen peroxide to generate oxygen and form bubbles, thereby creating a porous structure within the gypsum to achieve lightweight and heat insulation properties. However, in the production process of hydrogen peroxide foamed gypsum, the quality and particle size uniformity of the raw materials have a significant impact on the performance of the final product.

[0003] If unscreened gypsum raw materials are used directly to produce hydrogen peroxide foamed gypsum, larger particle sizes will lead to uneven distribution of air bubbles during the foaming process, affecting the product's thermal insulation performance and strength. The presence of impurities may also cause adverse reactions with hydrogen peroxide, reducing the foaming effect and even affecting the product's stability and durability. Therefore, gypsum raw materials need to be screened. Some traditional screening devices only have a single screening function, simply dividing gypsum raw materials into coarse and fine specifications. This cannot meet the requirements for more precise grading of raw material particle size, making it difficult to ensure that the gypsum raw materials entering the production process have uniform particle size. After screening, it is not convenient to classify and collect raw materials of different coarseness, affecting screening efficiency.

[0004] Therefore, it needs to be improved by setting coarse and fine screen plates for multi-stage screening of raw materials to improve screening efficiency. By setting an inclined screening cylinder, it is convenient to discharge materials and facilitate the classification and collection of raw materials of different particle sizes, making it convenient for users. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a gypsum raw material screening device, which has the advantages of multi-stage screening of raw materials by setting coarse and fine screen plates to improve screening effect, convenient discharge by setting an tiltable screening cylinder, easy classification and collection of raw materials of different particle sizes, and convenient use by users.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gypsum raw material screening device, comprising a base, a screening cylinder disposed inside the base, the rear side of the screening cylinder being rotatably connected to the rear side of the inner wall of the base via a rotating shaft, a servo motor being fixedly connected to the upper front of the base via a bracket, the output end of the servo motor penetrating into the interior of the base and fixedly connected to the front of the screening cylinder via a reducer, a feeding structure being disposed at the top of the screening cylinder, a coarse screen plate being disposed at the upper interior of the screening cylinder, a fine screen plate being disposed at the lower interior of the screening cylinder, the coarse screen plate and the fine screen plate being fixedly connected via a connecting rod, damping rods being fixedly connected to the front and rear sides of the top of the coarse screen plate, the top end of the damping rod being fixedly connected to the inner wall of the screening cylinder via a support plate, and a sleeve on the surface of the damping rod. A reset spring is provided. A transmission rod is fixedly connected to both the front and rear sides of the bottom of the fine screen plate. The bottom end of the transmission rod extends through to the bottom of the screening cylinder and is fixedly connected to a horizontal plate. A linear vibrator is fixedly connected to the bottom of the screening cylinder. The output end of the linear vibrator is fixedly connected to the top of the horizontal plate. Discharge ports are provided on the upper and lower sides of the left side of the screening cylinder, located above the coarse and fine screen plates. Symmetrically arranged sealing covers are slidably connected inside both discharge ports. An extension edge is fixedly connected to the left side of the sealing cover. A double-headed electric telescopic rod is fixedly connected to the front of the left side of the screening cylinder. The upper and lower ends of the double-headed electric telescopic rod are fixedly connected to the front of the opposite side of the two extension edges, respectively. The bottom of the inner wall of the screening cylinder has a rightward-sloping surface. A fine material discharge valve pipe is connected to the bottom of the right side of the screening cylinder.

[0007] As a preferred embodiment of this utility model, the feeding structure includes a feeding hopper connected to the top of the screening cylinder. A drive motor is fixedly connected to the right side of the feeding hopper. The output end of the drive motor extends into the interior of the feeding hopper and is fixedly connected to a spiral fan blade rod. The left end of the spiral fan blade rod is rotatably connected to the left side of the inner wall of the feeding hopper through a bearing seat.

[0008] As a preferred embodiment of this utility model, a guide rod is fixedly connected to the rear of the left side of the screening cylinder via a fixing seat, and a circular groove is provided on the rear side of both extended sides, with the surface of the guide rod slidably connected to the inner wall of the circular groove.

[0009] In a preferred embodiment of this invention, sealing piston rings are fixedly connected to the outer sides of both the coarse and fine screen plates. The outer side of the sealing piston rings is slidably connected to the inner wall of the screening cylinder. A sealing sleeve is slidably connected to the surface of the transmission rod, and the surface of the sealing sleeve is fixedly connected to the inner wall of the screening cylinder.

[0010] As a preferred embodiment of this utility model, inspection grooves are provided on both the upper and lower sides of the right side of the screening cylinder. Inspection cover plates located on the surface of the inspection grooves are fixedly connected to both the upper and lower sides of the right side of the screening cylinder by bolts. An observation port is provided in the center of the inspection cover plate, and a transparent explosion-proof glass is fixedly connected to the inside of the observation port by sealant.

[0011] As a preferred embodiment of this utility model, the surface of the reset spring is covered with a retractable rubber sleeve, the bottom end of the rubber sleeve is fixedly connected to the top of the coarse screen plate, and the top end of the rubber sleeve is fixedly connected to the bottom of the support plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model features a rotatable screening cylinder installed within the base, driven by a servo motor. This allows the screening cylinder to tilt, facilitating material discharge and the classification and collection of raw materials with different particle sizes. The coarse and fine screen plates enable multi-stage screening, accurately classifying the particle size of gypsum raw materials and ensuring uniform particle size of raw materials entering the production process. The damping rod and return spring work together to buffer and reset the coarse screen plate during screening, reducing the impact of vibration on the device. The linear vibrator drives the fine screen plate to vibrate via a transmission rod, enhancing the screening effect. The design of the discharge port and the closed cover, combined with the double-headed electric telescopic rod, allows for convenient control of the discharge of raw materials with different particle sizes. The slope at the bottom of the screening cylinder and the fine material discharge valve facilitate the discharge and collection of fine materials.

[0013] 2. This utility model, by setting up a feeding hopper for adding gypsum raw materials and driving a motor to rotate the spiral fan blade, enables the raw materials to be evenly conveyed to the screening cylinder in the feeding hopper, avoiding raw material accumulation and ensuring that the raw materials can enter the screening cylinder evenly for screening, thereby improving the efficiency and uniformity of the subsequent screening process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the front sectional view of the present invention; Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0015] In the diagram: 1. Base; 2. Screening cylinder; 3. Servo motor; 4. Feeding structure; 5. Coarse screen plate; 6. Fine screen plate; 7. Connecting rod; 8. Damping rod; 9. Return spring; 10. Transmission rod; 11. Horizontal plate; 12. Linear vibrator; 13. Discharge port; 14. Sealing cover; 15. Extension edge; 16. Double-headed electric telescopic rod; 17. Fine material discharge valve pipe; 18. Feed hopper; 19. Drive motor; 20. Spiral fan blade rod; 21. Guide rod; 22. Sealing piston ring; 23. Sealing sleeve; 24. Inspection cover plate; 25. Rubber sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, this utility model provides a gypsum raw material screening device, including a base 1. A screening cylinder 2 is arranged inside the base 1. The rear side of the screening cylinder 2 is rotatably connected to the rear side of the inner wall of the base 1 via a rotating shaft. A servo motor 3 is fixedly connected to the upper front of the base 1 via a bracket. The output end of the servo motor 3 passes through the interior of the base 1 and is fixedly connected to the front of the screening cylinder 2 via a reducer. A feeding structure 4 is arranged at the top of the screening cylinder 2. A coarse screen plate 5 is arranged at the upper inside of the screening cylinder 2, and a fine screen plate 6 is arranged at the lower inside of the screening cylinder 2. The coarse screen plate 5 and the fine screen plate 6 are fixedly connected by four evenly distributed connecting rods 7. Damping rods 8 are fixedly connected to the front and rear sides of the top of the coarse screen plate 5. The top end of the damping rod 8 is fixedly connected to the inner wall of the screening cylinder 2 via a support plate. A return spring 9 is sleeved on the surface of the damping rod 8. The top end of the return spring 9 is fixedly connected to the bottom of the support plate, and the bottom end of the return spring 9 is fixedly connected to the support plate. The coarse screen plate 5 is fixedly connected to the top. The fine screen plate 6 is fixedly connected to the front and rear sides of the bottom. The bottom end of the transmission rod 10 extends through to the bottom of the screening cylinder 2 and is fixedly connected to the horizontal plate 11. The bottom of the screening cylinder 2 is fixedly connected to the linear vibrator 12. The output end of the linear vibrator 12 is fixedly connected to the top of the horizontal plate 11. The left side of the screening cylinder 2 is provided with discharge ports 13 located above the coarse screen plate 5 and the fine screen plate 6. The interior of the two discharge ports 13 is slidably connected to symmetrically arranged sealing covers 14. The left side of the sealing cover 14 is fixedly connected to the extension edge 15. The front of the left side of the screening cylinder 2 is fixedly connected to the double-headed electric telescopic rod 16. The upper and lower ends of the double-headed electric telescopic rod 16 are fixedly connected to the front of the opposite side of the two extension edges 15, respectively. The bottom of the inner wall of the screening cylinder 2 is provided with a slope that slopes to the right. The bottom of the right side of the screening cylinder 2 is connected to the fine material discharge valve pipe 17.

[0018] refer to Figure 3 The feeding structure 4 includes a feeding hopper 18 connected to the top of the screening cylinder 2. A drive motor 19 is fixedly connected to the right side of the feeding hopper 18. The output end of the drive motor 19 passes through the interior of the feeding hopper 18 and is fixedly connected to a spiral fan blade rod 20. The left end of the spiral fan blade rod 20 is rotatably connected to the left side of the inner wall of the feeding hopper 18 through a bearing seat.

[0019] As a technical optimization of this utility model, by setting up a feeding hopper 18 for adding gypsum raw materials and driving the drive motor 19 to drive the spiral fan blade 20 to rotate, the raw materials can be evenly conveyed to the screening cylinder 2 in the feeding hopper 18, avoiding raw material accumulation and ensuring that the raw materials can enter the screening cylinder 2 evenly for screening, thereby improving the efficiency and uniformity of the subsequent screening process.

[0020] refer to Figure 2 A guide rod 21 is fixedly connected to the rear left side of the screening cylinder 2 via a fixed seat. Circular grooves are opened on the rear sides of the two extended sides 15, and the surface of the guide rod 21 is slidably connected to the inner wall of the circular groove.

[0021] As a technical optimization of this utility model, a guide rod 21 is set on the left side of the screening cylinder 2, and the circular groove on the rear side of the extension edge 15 is slidably connected to the guide rod 21, which provides a guiding effect for the sliding of the closed cover 14, making the closed cover 14 more stable and smooth when sliding under the drive of the double-headed electric telescopic rod 16, ensuring the accuracy of opening and closing of the discharge port 13, and thus facilitating the smooth discharge of raw materials of different particle sizes.

[0022] refer to Figure 3 Both the coarse screen plate 5 and the fine screen plate 6 are fixedly connected to the outer side of a sealing piston ring 22. The outer side of the sealing piston ring 22 is slidably connected to the inner wall of the screening cylinder 2. A sealing sleeve 23 is slidably connected to the surface of the transmission rod 10. The surface of the sealing sleeve 23 is fixedly connected to the inner wall of the screening cylinder 2.

[0023] As a technical optimization of this utility model, by setting the sealing piston ring 22 on the outer side of the coarse screen plate 5 and the fine screen plate 6 to slide and connect with the inner wall of the screening cylinder 2, the raw material can be prevented from leaking out from the gap between the screen plate and the cylinder wall during the screening process, thus ensuring the accuracy of screening. The sealing sleeve 23 on the surface of the transmission rod 10 is fixedly connected to the inner wall of the screening cylinder 2, which can prevent the raw material from leaking out from the gap between the transmission rod 10 and the bottom of the screening cylinder 2, further improving the sealing performance and screening effect of the device.

[0024] refer to Figure 1Inspection slots are provided on the upper and lower sides of the right side of the screening cylinder 2. Inspection cover plates 24 located on the surface of the inspection slots are fixedly connected to the upper and lower sides of the right side of the screening cylinder 2 by bolts. An observation port is provided in the center of the inspection cover plate 24. A transparent explosion-proof glass is fixedly connected to the inside of the observation port by sealant.

[0025] As a technical optimization of this utility model, by opening an inspection groove on the right side of the screening cylinder 2 and equipping it with an inspection cover plate 24, it is convenient to inspect and maintain the coarse screen plate 5, fine screen plate 6 and other components inside the screening cylinder 2. The observation port and transparent explosion-proof glass on the inspection cover plate 24 allow users to observe the screening situation inside the screening cylinder 2 without opening the inspection cover plate 24, promptly identify problems and take corresponding measures, thereby improving the maintainability and ease of use of the device.

[0026] refer to Figure 4 The surface of the return spring 9 is covered with a retractable rubber sleeve 25. The bottom end of the rubber sleeve 25 is fixedly connected to the top of the coarse screen plate 5, and the top end of the rubber sleeve 25 is fixedly connected to the bottom of the support plate.

[0027] As a technical optimization of this utility model, by covering the surface of the return spring 9 with a retractable rubber sleeve 25, the return spring 9 can be protected, preventing dust, raw materials and other impurities from adhering to the return spring 9 and affecting its elasticity and service life; at the same time, the retractable nature of the rubber sleeve 25 will not affect the normal extension and retraction function of the return spring 9, ensuring the normal operation of the return spring 9 during the vibration of the coarse screen plate 5.

[0028] The working principle and usage process of this utility model are as follows: In use, gypsum raw materials are first added from the feed hopper 18. The drive motor 19 drives the spiral fan blade 20 to rotate, ensuring the raw materials are evenly conveyed to the screening cylinder 2 within the feed hopper 18, preventing accumulation and guaranteeing the uniformity of subsequent screening. After entering the screening cylinder 2, the raw materials first fall onto the coarse screen plate 5. The coarse screen plate 5 and the fine screen plate 6 achieve multi-stage screening, accurately classifying the particle size of the gypsum raw materials. Simultaneously, the linear vibrator 12 drives the fine screen plate 6 to vibrate via the transmission rod 10, enhancing the screening effect. During the screening process, the damping rod 8 and the return spring 9 work together to buffer and reset the coarse screen plate 5, reducing the impact of vibration on the device. When it is necessary to discharge raw materials of different particle sizes... The double-headed electric telescopic rod 16 drives the closed cover 14 to slide, opening the discharge port 13. The guide rod 21 provides guidance for the sliding of the closed cover 14, ensuring the accuracy of opening and closing the discharge port 13. Coarse particles are discharged from the discharge port 13, while fine particles are discharged and collected along the slope at the bottom of the screening cylinder 2 through the fine particle discharge valve pipe 17. In addition, the servo motor 3 can drive the screening cylinder 2 to rotate and tilt it, which facilitates discharge and classification and collection of raw materials of different particle sizes. If the device needs to be inspected and maintained, the inspection cover 24 on the right side of the screening cylinder 2 can be opened. The internal screening situation can be observed through the transparent explosion-proof glass of the observation port on the inspection cover 24 without opening the cover.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 gypsum raw material screening device, comprising a base (1), characterized in that: The base (1) is equipped with a screening cylinder (2). The rear side of the screening cylinder (2) is rotatably connected to the rear side of the inner wall of the base (1) through a rotating shaft. A servo motor (3) is fixedly connected to the upper front of the base (1) through a bracket. The output end of the servo motor (3) passes through the interior of the base (1) and is fixedly connected to the front of the screening cylinder (2) through a reducer. A feeding structure (4) is provided at the top of the screening cylinder (2). A coarse screen plate (5) is provided at the upper inside of the screening cylinder (2). A fine screen plate (6) is provided at the lower inside of the screening cylinder (2). The coarse screen plate (5) and the fine screen plate (6) are fixedly connected by a connecting rod (7). A damping rod (8) is fixedly connected to the front and rear sides of the top of the coarse screen plate (5). The top of the damping rod (8) is fixedly connected to the inner wall of the screening cylinder (2) through a support plate. A return spring (9) is sleeved on the surface of the damping rod (8). A transmission spring is fixedly connected to the front and rear sides of the bottom of the fine screen plate (6). The bottom end of the transmission rod (10) extends through to the bottom of the screening cylinder (2) and is fixedly connected to a horizontal plate (11). A linear vibrator (12) is fixedly connected to the bottom of the screening cylinder (2). The output end of the linear vibrator (12) is fixedly connected to the top of the horizontal plate (11). The left side of the screening cylinder (2) is provided with discharge ports (13) located above the coarse screen plate (5) and the fine screen plate (6), and the interiors of the two discharge ports (13) are slidably connected. The screen cylinder (2) is equipped with a symmetrically arranged closed cover (14). An extension edge (15) is fixedly connected to the left side of the closed cover (14). A double-headed electric telescopic rod (16) is fixedly connected to the front of the left side of the screen cylinder (2). The upper and lower ends of the double-headed electric telescopic rod (16) are fixedly connected to the front of the opposite side of the two extension edges (15). The bottom of the inner wall of the screen cylinder (2) is provided with a slope that tilts to the right. The bottom of the right side of the screen cylinder (2) is connected to a fine material discharge valve pipe (17).

2. The gypsum raw material screening device according to claim 1, characterized in that: The feeding structure (4) includes a feeding hopper (18) connected to the top of the screening cylinder (2). A drive motor (19) is fixedly connected to the right side of the feeding hopper (18). The output end of the drive motor (19) extends into the interior of the feeding hopper (18) and is fixedly connected to a spiral fan blade rod (20). The left end of the spiral fan blade rod (20) is rotatably connected to the left side of the inner wall of the feeding hopper (18) through a bearing seat.

3. The gypsum raw material screening device according to claim 2, characterized in that: A guide rod (21) is fixedly connected to the rear left side of the screening cylinder (2) via a fixed seat. Circular grooves are provided on the rear sides of the two extended sides (15). The surface of the guide rod (21) is slidably connected to the inner wall of the circular groove.

4. The gypsum raw material screening device according to claim 3, characterized in that: Both the coarse sieve plate (5) and the fine sieve plate (6) are fixedly connected to a sealing piston ring (22). The outer side of the sealing piston ring (22) is slidably connected to the inner wall of the screening cylinder (2). The surface of the transmission rod (10) is slidably connected to a sealing sleeve (23). The surface of the sealing sleeve (23) is fixedly connected to the inner wall of the screening cylinder (2).

5. The gypsum raw material screening device according to claim 4, characterized in that: Inspection slots are provided on the upper and lower sides of the right side of the screening cylinder (2). Inspection cover plates (24) located on the surface of the inspection slots are fixedly connected to the upper and lower sides of the right side of the screening cylinder (2) by bolts. An observation port is provided in the center of the inspection cover plate (24). A transparent explosion-proof glass is fixedly connected inside the observation port by sealant.

6. The gypsum raw material screening device according to claim 5, characterized in that: The surface of the reset spring (9) is covered with a retractable rubber sleeve (25). The bottom end of the rubber sleeve (25) is fixedly connected to the top of the coarse screen plate (5), and the top end of the rubber sleeve (25) is fixedly connected to the bottom of the support plate.

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