Sound insulation cover structure of wood pulp sheet pre-crusher
By installing a soundproof cover around the wood pulp pre-crusher, the problem of high noise levels was solved, resulting in reduced noise, stable operation during normal production, and protection of the health of the operators.
Patent Information
- Application Number
- CN202520099974.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-15
AI Technical Summary
When chemical companies produce cellulose ether products, the wood pulp chip pre-crushing machine operates with high noise levels, which affects the health of the operators and lacks effective sound insulation.
Design a soundproof cover structure for a wood pulp chip pre-crusher, including a soundproof cover body disposed around the pre-crusher, having a spacer and observation hole, and equipped with sliding partitions and rubber strips to reduce noise and ensure normal operation.
It effectively reduces noise to below 85dB, protecting the health of operators, while not affecting the normal operation of the pre-crusher and material conveying.
Smart Images
Figure CN223675031U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of chemical industry especially relates to a soundproof cover structure of wood pulp piece pre-crusher. BACKGROUND
[0002] The wood pulp piece is used as one of raw materials when the cellulose ether product is produced and processed in the chemical enterprise.
[0003] The wood pulp piece that unwinds needs to be preliminarily crushed by using the pre-crusher and then is used as the cellulose raw material. The wood pulp piece pre-crusher generates high-decibel noise (the noise value is detected at 120-140dB) in the running process, which seriously affects the health of the front-line operators. The pre-crusher equipment is set with the feeding roller group at the front side and the closed material conveying belt at the rear side, which is non-standard equipment and has no better alternative scheme. Therefore, it is necessary to design a sound insulation structure to improve the on-site environment and eliminate the noise diffusion to cause the occupational health hazards to the employees. SUMMARY
[0004] The utility model aims at the deficiency of prior art, provides a soundproof cover structure of wood pulp piece pre-crusher, its simple structure, processing cost is low, can effectively reduce the running noise to below 85dB on the basis of not affecting the normal work of pre-crusher.
[0005] The technical scheme of the utility model is: a soundproof cover structure of wood pulp piece pre-crusher, including the pre-crusher arranged on the ground of factory area, still including soundproof cover body, the soundproof cover body is arranged on the ground of factory area, and the pre-crusher is formed surrounding, and there is interval space between the inner wall of soundproof cover body and pre-crusher, the front side wall of soundproof cover body is provided with first opening, and the first opening corresponds to the feeding port of pre-crusher, and the rear side wall is provided with second opening, and the second opening corresponds to the material outlet of pre-crusher, the bottom edge of first opening is provided with wood pulp piece support groove, and the front side wall of soundproof cover body is provided with the baffle that can slide up and down, and the baffle is shielded to first opening, and is supported on the groove wall of wood pulp piece support groove, and the second opening surrounds the closed material conveying belt of pre-crusher.
[0006] The four edges of the second opening are covered with rubber strips.
[0007] The side wall of the soundproof cover body is provided with a glass observation hole.
[0008] The wood pulp piece support groove is integrally formed by a plate.
[0009] The front side wall outside and inside of the soundproof cover body are provided with support pads, which support the wood pulp piece support groove.
[0010] The front side wall of the soundproof cover body is provided with a sliding rail extending in the vertical direction, the soundproof plate comprises a frame and glass blocks embedded in the frame, the soundproof plate is matched with the sliding rail through the frame and slides in the height direction, and is supported on the slot wall of the wood pulp piece support slot through the frame.
[0011] The lower edge of the frame is provided with a handle.
[0012] The above technical scheme has the following beneficial effects:
[0013] 1. The soundproof cover structure of the wood pulp piece pre-crusher comprises a pre-crusher arranged on the ground of a factory area, and a soundproof cover body, the pre-crusher is used for crushing raw wood pulp pieces as raw materials for downstream processes, and the soundproof cover body is used for shielding the noise generated when the pre-crusher operates, so as to reduce the decibel of the transmitted noise. The soundproof cover body is arranged on the ground of the factory area to form an enclosure for the pre-crusher, and there is a spacing between the inner wall of the soundproof cover body and the pre-crusher, so that the noise can be shielded and interference with the pre-crusher can be avoided, thereby ensuring normal operation of the pre-crusher. A first opening is arranged on the front side wall of the soundproof cover body and corresponds to the feeding port of the pre-crusher, the raw wood pulp pieces pass through the first opening to enter the feeding port of the pre-crusher, and a second opening is arranged on the rear side wall and corresponds to the discharging port of the pre-crusher, the crushed wood pulp pieces are conveyed to the downstream processes through the discharging port of the pre-crusher and the second opening. A wood pulp piece support slot is arranged on the bottom edge of the first opening, so that the wood pulp pieces are supported and slide on the wood pulp piece support slot and enter the feeding port of the pre-crusher, thereby avoiding breakage of the wood pulp pieces when they pass through the soundproof cover body and ensuring smooth feeding. A soundproof plate that can slide up and down is arranged on the front side wall of the soundproof cover body to shield the first opening and is supported on the slot wall of the wood pulp piece support slot, there is a spacing between the soundproof plate and the slot bottom of the wood pulp piece support slot, so that the raw wood pulp pieces can smoothly pass through the soundproof cover body, the transmitted noise decibel is effectively reduced, in addition, the soundproof plate can be lifted up for maintenance personnel to pass through the first opening to enter the soundproof cover body to perform maintenance work on the pre-crusher, thereby meeting the actual needs of the enterprise.
[0014] 2. Rubber strips are wrapped around the four edges of the second opening, so that the transmitted noise decibel on the rear side is reduced, the vibration of the closed conveying belt is effectively reduced to the soundproof cover body, and the soundproof cover body is prevented from vibrating and generating noise.
[0015] 3. Support pads are arranged on the outer side and the inner side of the front side wall of the soundproof cover body to support the wood pulp piece support slot and ensure the stability of the wood pulp piece support slot.
[0016] The sound insulation cover structure is detected, and the noise of the work station is reduced to less than 85 dB. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model;
[0018] Figure 2 It is Figure 1 A view.
[0019] In the drawings, 1 is a pre-crusher, 2 is a sound insulation cover body, 3 is a first opening, 4 is a second opening, 5 is a wood pulp piece supporting groove, 6 is a partition, 61 is a frame, 62 is a glass block, 63 is a handle, 7 is a supporting pad, and 8 is a sliding rail. DETAILED DESCRIPTION
[0020] Referring to Figure 1 and Figure 2The embodiment of the application relates to a soundproof cover structure of a wood pulp sheet pre-crusher. The soundproof cover structure of the wood pulp sheet pre-crusher comprises a pre-crusher 1 arranged on a factory ground and installed and configured according to the manufacturer's instructions. The soundproof cover structure further comprises a soundproof cover body 2 arranged on the factory ground and surrounding the pre-crusher 1, and a spacing between the inner wall of the soundproof cover body 2 and the pre-crusher. Generally, the soundproof cover body comprises a framework and a galvanized iron plate fixed on the framework to ensure the structural strength of the soundproof cover body. A first opening 3 corresponding to the feeding port of the pre-crusher is arranged on the front side wall of the soundproof cover body 2, and a second opening 4 corresponding to the discharging port of the pre-crusher is arranged on the rear side wall. Specifically, the first opening and the second opening are both rectangular openings. In order to facilitate the observation of the running state of the pre-crusher in the soundproof cover body, a glass observation hole is arranged on the side wall of the soundproof cover body 2. A wood pulp sheet supporting groove 5 is arranged on the bottom edge of the first opening 3. In the embodiment, the wood pulp sheet supporting groove is integrally formed by an iron plate. Support pads 7 are arranged on the outer side and the inner side of the front side wall of the soundproof cover body 2. The wood pulp sheet supporting groove is fixed on the bottom edge of the first opening and supported by the support pads on both sides. Obviously, the width of the first opening is greater than the groove width of the wood pulp sheet supporting groove. The gap between the two sides of the wood pulp sheet supporting groove and the first opening is filled with the support pads, and the filling height is adapted to the groove wall height of the wood pulp sheet supporting groove. A slidable partition plate 6 is arranged on the front side wall of the soundproof cover body 2 and covers the first opening 3 and is supported on the groove wall of the wood pulp sheet supporting groove. In the embodiment, a slide rail 8 extending in the vertical direction is arranged on the outer side of the front side wall of the soundproof cover body 2. Specifically, the slide rail is an I-shaped steel. The partition plate 6 comprises a frame 61 and a glass block 62 embedded in the frame. The partition plate 6 is slid in the height direction through the cooperation of the frame and the slide rail and is supported on the groove wall of the wood pulp sheet supporting groove through the frame. In order to facilitate use, a handle 63 is arranged on the lower edge of the frame 61. The second opening 4 surrounds the closed conveying belt of the pre-crusher. In the embodiment, rubber strips are arranged on the four edges of the second opening 4 to improve the sealing performance and reduce the vibration transmission.
Claims
1. A soundproofing cover structure of a wood pulp sheet pre-crusher, comprising a pre-crusher (1) disposed on a factory floor, characterized by: The soundproof cover body (2) is arranged on the factory ground, surrounds the pre-crusher (1), and has a space between the inner wall of the soundproof cover body (2) and the pre-crusher, The front side wall of the soundproof cover body (2) is provided with a first opening (3) corresponding to the feeding port of the pre-crusher, and the rear side wall is provided with a second opening (4) corresponding to the discharging port of the pre-crusher, The bottom edge of the first opening (3) is provided with a wood pulp piece supporting groove (5), the front side wall of the soundproof cover body (2) is provided with a vertically slidable partition plate (6) which blocks the first opening (3) and is supported on the groove wall of the wood pulp piece supporting groove (5), The second opening (4) surrounds the closed conveying belt of the pre-crusher.
2. The soundproof cover structure of a wood pulp sheet pre-crusher according to claim 1, characterized by: The four edges of the second opening (4) are covered with rubber strips.
3. The soundproof cover structure of a wood pulp sheet pre-crusher according to claim 1, characterized by: The side wall of the soundproof cover body (2) is provided with a glass observation hole.
4. The soundproof cover structure of a wood pulp sheet pre-crusher according to claim 1, characterized by: The wood pulp piece supporting groove (5) is integrally formed by a plate.
5. The soundproof cover structure of a wood pulp sheet pre-crusher according to claim 1 or 4, characterized in that: The front side wall of the soundproof cover body (2) is provided with a support pad (7) on the outer side and the inner side, which supports the wood pulp piece supporting groove (5).
6. The soundproofing cover structure of a wood pulp sheet pre-crusher according to claim 1, characterized by: The front side wall of the soundproof cover body (2) is provided with a vertically extending slide rail (8), the partition plate (6) includes a frame (61) and a glass block (62) embedded in the frame, the partition plate (6) is slid in the height direction by cooperating the frame with the slide rail, and is supported on the groove wall of the wood pulp piece supporting groove by the frame.
7. The soundproofing cover structure of a wood pulp sheet pre-crusher according to claim 6, characterized by: The lower edge of the frame (61) is provided with a handle (63).