Bidirectional linear vibrating screen
By using bidirectional linear vibrating screens for pre-screening in the petroleum coke production process, the problems of low efficiency and frequent failures of traditional jaw crushers are solved, which improves the crushing efficiency and saves maintenance time.
Patent Information
- Application Number
- CN202420863883.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-24
AI Technical Summary
In the traditional petroleum coke production process, the crushing efficiency of the jaw crusher is not high and is prone to failure, affecting production efficiency.
A bidirectional linear vibrating screen is used instead of the vibration feeder, and pre-screening is performed before petroleum coke enters the jaw crusher to improve the crushing efficiency of the crusher.
Through pre-screening, the crushing efficiency of the jaw crusher is improved, the failure rate of the crusher is reduced, and the maintenance time of the jaw crusher is saved.
Smart Images
Figure CN222447205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical industry, in particular to a bidirectional linear vibrating screen. Background Art
[0002] The traditional petroleum coke production process is: petroleum coke → vibrating feeder → jaw crusher → dryer → Raymond mill → rotary kiln → qualified finished products are stored. Before pre-calcination, the green coke is crushed to a size of less than 40 mm before entering the dryer. Petroleum coke contains both large and small pieces, all of which enter the jaw crusher. However, this crusher has low crushing efficiency and is prone to malfunction.
[0003] To this end, we propose a bidirectional linear vibrating screen to solve the above problems. Utility Model Content
[0004] The utility model provides a bidirectional linear vibrating screen, which is adopted to replace a vibrating feeder and is used for pre-screening petroleum coke before it enters a jaw crusher, so as to improve the crushing efficiency of the jaw crusher.
[0005] In order to solve the above technical problems, the utility model provides a bidirectional linear vibrating screen, comprising a screen box, on which a side plate type vibrating motor group is installed;
[0006] The side plate vibration motor group includes a side plate vibration motor a, a side plate vibration motor b and a side plate vibration motor c. The number of the side plate vibration motor a, the side plate vibration motor b and the side plate vibration motor c are two, and the two side plate vibration motors a, the two side plate vibration motors b and the two side plate vibration motors c are all mirror-imaged in the front and rear directions of the screen box. The side plate vibration motor a and the side plate vibration motor b have the same height, and the side plate vibration motor c is arranged directly below the middle position of the side plate vibration motor a and the side plate vibration motor b.
[0007] Preferably, an outlet flexible connection and an inlet flexible connection are installed on the screen box, the outlet flexible connection is installed on both sides of the screen box, and the inlet flexible connection is arranged on the top of the screen box.
[0008] Preferably, a bar screen is installed inside the screen box.
[0009] Preferably, the screen box is further equipped with vibration-damping springs. There are four vibration-damping springs, two of which are respectively arranged on the left and right sides of the screen box, and the two vibration-damping springs on the same side are arranged in a mirror image.
[0010] Preferably, a plurality of identical sieve holes are evenly arranged on the rod screen.
[0011] Preferably, the bar screen is mounted on the screen box by bolts.
[0012] Compared with the related art, the present invention has the following beneficial effects:
[0013] 1. In the utility model, a bidirectional linear vibrating screen is used instead of a vibrating feeder. The petroleum coke enters the jaw crusher for pre-screening, and the coke within 40 mm enters the jaw crusher for crushing, and the coke within 40 mm enters the dryer, thereby improving the crushing efficiency of the jaw crusher. At the same time, two jaw crushers can be used, one for use and one for backup, thereby saving the maintenance time of the jaw crusher.
[0014] 2. In the present invention, a replaceable bar screen is provided inside the bidirectional linear vibrating screen, which not only facilitates the screening of petroleum coke but also enables the device to disassemble the bar screen, thereby facilitating the cleaning and replacement of the screening plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the front view of the bidirectional linear vibrating screen;
[0016] Figure 2 It is a side sectional view of a bidirectional linear vibrating screen.
[0017] Numbers in the figure: 1, screen box; 2, vibration damping spring; 3, outlet soft connection; 4, inlet soft connection; 5, side plate type vibration motor a; 6, rod screen; 7, side plate type vibration motor c; 8, side plate type vibration motor b. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0019] refer to Figure 1-2A bidirectional linear vibrating screen is given, comprising a screen box 1, an outlet soft connection 3 and an inlet soft connection 4 are installed on the screen box 1, the outlet soft connection 3 is installed on both sides of the screen box 1, a discharge port is provided at the bottom of the screen box 1, and a vibration damping spring 2 is also installed on the screen box 1. There are four vibration damping springs 2, two of which are provided on the left and right sides of the screen box 1, and the two vibration damping springs 2 on the same side are mirror-set, the two vibration damping springs 2 are provided near the two outlet soft connections 3, the inlet soft connection 4 is provided on the top of the screen box 1, a rod screen 6 is installed inside the screen box 1, a plurality of the same sieve holes are evenly opened on the rod screen 6, and a side plate type vibration motor group is installed on the screen box 1; the side plate type vibration motor group It includes a side plate vibration motor a5, a side plate vibration motor c7 and a side plate vibration motor b8. There are two side plate vibration motors a5, two side plate vibration motors c7 and two side plate vibration motors b8, and the two side plate vibration motors a5, two side plate vibration motors c7 and two side plate vibration motors b8 are mirror-set in the front and back directions of the screen box 1. The side plate vibration motor a5 and the side plate vibration motor b8 have the same height. The side plate vibration motor c7 is arranged directly below the middle position between the side plate vibration motor a5 and the side plate vibration motor b8. Each side plate vibration motor a5, side plate vibration motor c7 and side plate vibration motor b8 is connected with an eccentric block.
[0020] Furthermore, the rod screen 6 is mounted on the screen box 1 by bolts, and the two side plate vibration motors a5, the two side plate vibration motors c7 and the two side plate vibration motors b8 are all connected by universal joints.
[0021] Working principle: There are 6 side plate vibration motors in total in the bidirectional linear vibrating screen, 4 on the top and 2 on the bottom. The 4 on the top are two side plate vibration motors a5 and two side plate vibration motors b8, and the side plate vibration motor c7 is the 2 on the bottom. The side plate vibration motor c7 is always involved in the work (all the side plate vibration motors c7 are involved in the work when they are in the working state). Among the 4 on the top, two side plate vibration motors a5 or two side plate vibration motors b8 are working, that is, two symmetrical ones are involved in the work, and the other symmetrical ones are Two of them are not working, and petroleum coke enters the screen box 1 through the feed port. When the side plate vibration motor a5 is working, the side plate vibration motor b8 is not working. The side plate vibration motor a5 and the side plate vibration motor c7 rotate synchronously and in opposite directions. The exciting forces generated by their eccentric blocks cancel each other out in the direction parallel to the motor axis and are superimposed into a resultant force in the direction perpendicular to the motor axis. The petroleum coke bulk materials of different particle sizes are screened through the rod screen 6, and the powder flows into the lower discharge port of the screen box, and the screened material is transported to the right.
[0022] When side plate vibration motors C7 and B8 are operating, side plate vibration motor A5 is inoperative. Screening allows the oversize material to be transported to the left, achieving bidirectional transport. Meanwhile, the sifter mesh 6 is bolted to the screen box 1. The sifter mesh 6 is removable for easy cleaning and replacement. The oversize material outlet and inlet flexible connections 3 and 4 are sealed to prevent dust contamination.
[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0024] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bidirectional linear vibrating screen, characterized in that: It comprises a screen box (1), on which a side plate type vibration motor group is installed; The side plate type vibration motor group comprises a side plate type vibration motor a (5), a side plate type vibration motor c (7) and a side plate type vibration motor b (8), wherein the number of the side plate type vibration motor a (5), the side plate type vibration motor c (7) and the side plate type vibration motor b (8) is two, and the two side plate type vibration motors a (5), the two side plate type vibration motors c (7) and the two side plate type vibration motors b (8) are all arranged in a mirror image in the front-rear direction of the screen box (1), the side plate type vibration motor a (5) and the side plate type vibration motor b (8) are of the same height, and the side plate type vibration motor c (7) is arranged directly below the middle position between the side plate type vibration motor a (5) and the side plate type vibration motor b (8).
2. The bidirectional linear vibrating screen according to claim 1, characterized in that: An outlet flexible connection (3) and an inlet flexible connection (4) are installed on the screen box (1); the outlet flexible connection (3) is installed on both sides of the screen box (1), and the inlet flexible connection (4) is arranged on the top of the screen box (1).
3. The bidirectional linear vibrating screen according to claim 1, characterized in that: A bar screen (6) is installed inside the screen box (1).
4. The bidirectional linear vibrating screen according to claim 1, characterized in that: The screen box (1) is also equipped with a vibration-damping spring (2). There are four vibration-damping springs (2), two of which are arranged on the left and right sides of the screen box (1), respectively, and the two vibration-damping springs (2) on the same side are arranged in a mirror-image manner.
5. The bidirectional linear vibrating screen according to claim 3, characterized in that: The rod screen (6) is evenly provided with a plurality of the same screen holes.
6. The bidirectional linear vibrating screen according to claim 3, characterized in that: The bar screen (6) is mounted on the screen box (1) by means of bolts.