Concrete screening machine for hydraulic engineering

Abstract

The concrete screening machine for the water conservancy project comprises a vibration screening box body, a crushing box body and supporting columns, the vibration screening box body is fixedly connected with the crushing box body, the multiple supporting columns are arranged at the bottom of the vibration screening box body and the bottom of the crushing box body, a feeding port is formed in the bottom of the vibration screening box body, and a discharging port is formed in the bottom of the crushing box body. A first material screening plate, a second material screening plate and a third material screening plate are fixedly mounted in the vibrating screen box body in sequence from top to bottom; the multiple screening plates are fixedly arranged in the vibrating screen box, and the apertures of the screening plates are different, so that concrete can be screened step by step, gravel raw materials of different sizes can be better screened out, and the screening quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of accounting tools, especially relates to a concrete screening machine for water conservancy projects. BACKGROUND

[0002] Concrete, commonly known as "tóng" for short: refers to the engineering composite material that the cementing material will aggregate cemented into a whole. The word concrete commonly spoken refers to the cement concrete obtained by mixing cement as cementing material, sand and stone as aggregate, water (may contain admixtures and additives) in a certain proportion, and stirring, also known as ordinary concrete, which is widely used in civil engineering and water conservancy engineering.

[0003] Screening is a method of separating particle groups according to the powder science properties of particles such as size, specific gravity, electrical properties and magnetism. The operation of separating mixed materials of different particle sizes into various particle size grades by using a screen with holes is called screening.

[0004] Patent No. CN221433398U provides a concrete raw material separation and screening machine, which comprises a mounting box, a feed hopper fixedly connected inside the mounting box, an outlet pipe fixedly connected inside the mounting box, an electromagnetic valve fixedly connected outside the outlet pipe, and a screening and crushing structure arranged inside the mounting box. The screening and crushing structure comprises a spring. The concrete raw material separation and screening machine is convenient for separating and screening sand and stone concrete raw materials, the double screening makes the screening more thorough, avoids the influence of incomplete sand and stone raw material screening on the quality of concrete production, improves the working efficiency of concrete production, reduces the labor intensity of workers, and facilitates the crushing of large sand and stone raw materials screened out and the screening of the large sand and stone raw materials again by the screening screen through the arrangement of the crushing box, the crushing motor, the crushing roller and the guide pipe.

[0005] However, the patent technology still has the following defects: first, the patent technology adopts the spring and screening screen mode to realize screening, but in the long-term screening work, due to the gravity of the material itself on the spring and the screening screen, the spring produces elastic deformation, the elastic force is invalid, and the screening rate is reduced, and it is slightly inconvenient to replace the spring; secondly, the large concrete screened out from the upper side of the device needs to be guided out from the gap between the screening screen and the mounting box to the crushing device, and the large material is easy to block at this position, which affects the crushing quality. UTILITY MODEL CONTENTS

[0006] According to the above technical problems, the utility model provides a concrete screening machine for water conservancy projects, which improves the working efficiency.

[0007] The utility model provides a concrete screening machine for hydraulic engineering, including vibrating screen box body, crushing box body and support column, vibrating screen box body is connected with crushing box body fixedly, vibrating screen box body bottom and crushing box body bottom all set up a plurality of support columns, vibrating screen box body top sets up the feed inlet, vibrating screen box body inside from top to bottom fixed mounting first screening plate, second screening plate and third screening plate in succession, vibrating screen box surface installation vibration motor in second screening plate side, the aperture of screening on first screening plate, second screening plate and third screening plate reduces in proper order, crushing box body side installation rotation motor A, rotation motor A side lower part sets up rotation motor B, rotation motor A output end connects crushing roll A, the output end of rotation motor B connects crushing roll B.

[0008] The number of crushing roll A is two, two crushing roll A contact, one of the crushing roll A is connected with the output end of rotation motor A, the number of crushing roll B is two, two crushing roll B contact, one of the crushing roll B is connected with the output end of rotation motor B.

[0009] Damping spring shock absorber is arranged on the support column.

[0010] The first screening plate, the second screening plate and the third screening plate are placed at an angle relative to the box body.

[0011] The first screening plate and the second screening plate tail project out of the vibrating screen box.

[0012] The length of the first screening plate, the second screening plate and the third screening plate decreases in turn.

[0013] The first screening plate and the second screening plate tail project out of the vibrating screen box.

[0014] The vibrating screen box side bottom is provided with a protection door A, and the protection door A is provided with an observation window.

[0015] Two crushing roll A is placed in the oblique below of the first screening plate.

[0016] Two crushing roll B is placed in the oblique below of the second screening plate.

[0017] The utility model discloses a beneficial effect is: the utility model discloses a kind of concrete screening machines for hydraulic engineering, by being fixedly arranged multiple screening plates in the vibration screening box body, and the aperture between each screen plate is not one, can realize the screening of concrete step by step, better screen different size sandstone raw materials, improve screening quality;By setting crushing box body, the position of crushing roller in box body is different, one group of crushing roller is close to the discharge of first screening plate, another group of crushing roller is close to the discharge of second screening plate, different size sandstone raw materials in screen can be respectively crushed, the crushing roller used is also respectively applicable to different size sandstone raw materials, targeted crushing, so that crushing efficiency is better, and crushing quality is better;First screening plate and the bottom of second screening plate are not provided with sieve hole, at this time, the bottom of screening plate is just the function of guide plate, and screened sandstone raw materials are more accurately guided between crushing roller, convenient crushing;The sandstone raw materials of last crushing and the qualified concrete of screening are collected by opening the respective protection door respectively;By setting damping spring shock absorber, reduce the impact of box body to bottom surface. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is side view structure schematic diagram of the utility model;

[0019] Figure 2 It is side view structure schematic diagram of the utility model;

[0020] Figure 3 It is structure schematic diagram of vibration screening box body and internal component of the utility model;

[0021] Figure 4 It is structure schematic diagram of crushing box body and internal component of the utility model;

[0022] Figure 5 It is position relation schematic diagram of crushing roller and each screen plate of the utility model.

[0023] Sign: 1-vibration screening box body;11-feeding port;12-vibration motor;13-protection door A;14-first screening plate;15-second screening plate;16-third screening plate;2-crushing box body;21-protection door B;22-rotary motor A;23-rotary motor B;24-crushing roller A;25-crushing roller B;3-support column;31-damping spring shock absorber;4-baffle. DETAILED DESCRIPTION

[0024] Example 1

[0025] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings of the utility model.

[0026] As Figures 1-4The utility model provides a concrete screening machine for water conservancy project, including vibrating sieve box body 1, crushing box body 2 and support column 3, vibrating sieve box body 1 is fixedly connected with crushing box body 2, vibrating sieve box body 1 bottom and crushing box body 2 bottom all are provided with a plurality of support column 3, vibrating sieve box body 1 top sets up feed inlet 11, vibrating sieve box body 1 inside from top to bottom fixed mounting first screening plate 14, second screening plate 15 and third screening plate 16 in proper order, vibrating motor 12 is installed vibrating sieve box body 1 surface at second screening plate 15 side, the aperture of screen hole on first screening plate 14, second screening plate 15 and third screening plate 16 decreases in proper order, rotary motor A 22 is installed crushing box body 2 side, rotary motor B 23 is set up rotary motor A 22 side lower part, rotary motor B 23's output end connects crushing roll B 25.

[0027] The number of crushing roll A 24 is two, two crushing roll A 24 contact, wherein one crushing roll A 24 is connected with the output end of rotary motor A 22, the number of crushing roll B 25 is two, two crushing roll B 25 contact, wherein one crushing roll B 25 is connected with the output end of rotary motor B 23.

[0028] Damping spring shock absorber 31 is set up on support column 3.

[0029] First screening plate 14, second screening plate 15 and third screening plate 16 are placed at a certain angle relative to the box.

[0030] The tail of first screening plate 14 and second screening plate 15 projects out of vibrating sieve box 1.

[0031] The length of first screening plate 14, second screening plate 15 and third screening plate 16 decreases in turn.

[0032] The tail of first screening plate 14 and second screening plate 15 projects out of vibrating sieve box 1.

[0033] Protective door A 13 is set up on the bottom of vibrating sieve box 1 side, and observation window is set up on protective door A 13.

[0034] Two crushing roll A 24 are placed obliquely below first screening plate 14.

[0035] Two crushing roll B 25 are placed obliquely below second screening plate 15.

[0036] The connecting place of vibrating sieve box 1 and crushing box body 2 is provided with baffle 4.

[0037] Example 2

[0038] The utility model discloses a vibrating screen box body 1 is connected with the broken box body 2, and the broken box body 2 is connected with the protective door B, and the protective door B is connected with the broken roller B 25, and the protective door A 13 is connected with the vibrating screen box body 1, and the vibrating screen box body 1 is connected with the first sieve plate 14, and the vibrating screen box body 1 is connected with the second sieve plate 15, and the vibrating screen box body 1 is connected with the third sieve plate 16, and the vibrating motor 12 is connected with the vibrating screen box body 1.

[0039] The fine concrete that is screened out finally falls to the bottom of the vibrating screen box body 1, and is collected by opening the protective door A 13, wherein the vibrating screen box body 1 is provided with a baffle 4 at the connecting position with the broken box body 2, so as to prevent the broken sandstone raw materials from falling to the bottom of the vibrating screen box body 1.

[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The various components mentioned in the utility model are common techniques in the prior art, which should be understood by the skilled in the art. The utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic engineering concrete screening machine, comprising a vibrating screen box, a crushing box and a support column, the vibrating screen box and the crushing box are fixedly connected, the bottom of the vibrating screen box and the bottom of the crushing box are provided with a plurality of support columns, the top of the vibrating screen box is provided with a feeding port, the inside of the vibrating screen box is sequentially fixedly installed with a first screening plate, a second screening plate and a third screening plate from top to bottom, a vibrating motor is installed on the surface of the vibrating screen box beside the second screening plate, the screen hole diameters of the first screening plate, the second screening plate and the third screening plate gradually decrease, a rotating motor A is installed beside the crushing box, a rotating motor B is provided below the rotating motor A, the output end of the rotating motor A is connected with a crushing roller A, and the output end of the rotating motor B is connected with a crushing roller B.

2. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that The number of the crushing roller A is two, two crushing rollers A are in contact, one of the crushing rollers A is connected with the output end of the rotating motor A, the number of the crushing roller B is two, two crushing rollers B are in contact, one of the crushing rollers B is connected with the output end of the rotating motor B.

3. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that A damping spring shock absorber is arranged on the support column.

4. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that The first screening plate, the second screening plate and the third screening plate are placed at an angle relative to the box.

5. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that The tail of the first screening plate and the second screening plate projects out of the vibrating screen box.

6. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that The length of the first screening plate, the second screening plate and the third screening plate gradually decreases, and a baffle is arranged at the connection between the vibrating screen box and the crushing box.

7. The concrete screening machine for hydraulic engineering according to claim 1, characterized in that There is no screen hole at the tail of the first screening plate and the second screening plate projecting out of the vibrating screen box, a protection door A is arranged at the bottom beside the vibrating screen box, an observation window is arranged on the protection door A, two crushing rollers A are arranged obliquely below the first screening plate, and two crushing rollers B are arranged obliquely below the second screening plate.

Images