CN209829703U - Building aggregate desliming device - Google Patents

Abstract

The utility model relates to a building aggregate desliming device. Under the action of a vibrator and an elastic body, the desliming chamber generates vibrations with a certain intensity and direction; multiple groups of water spray pipes and damping pipes are arranged along the axial direction of the desliming chamber. The water spray pipe at the entrance of the feed hopper pre-wets the aggregate and suppresses dust; the pre-wetted aggregate enters the desliming chamber under the action of gravity; under the vibration of the desliming chamber, the aggregate vibrates while vibrating Moving to the discharge end, the aggregate particles collide and rub against each other during the vibration process of the desilting chamber, causing the fine particles and mud components adhering to the aggregate particles to fall off and be carried by the flushing water through the sieve plate and into the Sludge water collection bucket under the screen; the material flow is constantly changing the trajectory under the obstruction of the upper and lower damping plates, which strengthens the collision and friction between aggregate particles and the desliming effect of spray cleaning. The utility model has the characteristics of high desliming efficiency, large processing capacity, simple equipment structure, easy operation, low energy consumption, etc., and conforms to the concepts of environmental protection and sustainable development.

Description

A construction aggregate desliming device

technical field

The utility model relates to the field of production, processing and use of building aggregates, in particular to a building aggregate desliming device.

Background technique

Construction aggregate is a building material with a certain gradation and particle shape obtained by crushing and processing large rocks, and is the main raw material for concrete. my country is a big country in the production and consumption of construction aggregates. In 2017 alone, my country consumed 20 billion tons of construction aggregates, accounting for 40% of the world's total consumption of sand and gravel aggregates. The clay content of aggregates is an important quality indicator. When the content of fine powder in the aggregate increases, it will seriously affect the strength and durability of concrete and buildings, and affect the safety and life of buildings; the increase in mud content will lead to an increase in methylene blue value (an important indicator of building aggregates) and reduce the value of aggregates. Product quality grade and price.

Crushing is a key link in the construction aggregate processing process. A large amount of stone powder will be produced during the crushing process of stone materials. The stone powder, clay powder and other fine-grained debris in the aggregate constitute the fine mud part of the building aggregate; the clay minerals with a high degree of weathering on the surface of the ore body and the fault zone also Aggregate will be mixed in the blasting process, and a large amount of muddy impurities will be formed in the subsequent crushing process, adhering to the surface of aggregate particles; fine powder and muddy particles have poor particle shape, low density, large specific surface area, and high water absorption. When the content of fine powder in construction aggregate is too high, it will reduce the strength and bearing capacity of concrete, and also affect the operability of cement mortar. Therefore, on the premise of meeting the production requirements and technical capabilities, the fine powder and muddy impurities in the building aggregate should be removed as much as possible.

Existing aggregate desliming devices mostly use vibrating screens and spiral drums. The vibrating screen can only remove the discrete fine powder mixed in the aggregate, and the removal effect on the adhesive fine powder and muddy impurities is very poor; the spiral drum desliming device has a large volume and high energy consumption, and cannot realize muddy water Real-time separation of aggregates and aggregates; the building aggregate desliming device causes collision and friction between aggregate particles through vibration, and the damping plate is used to forcibly change the motion state of the material and promote the tumbling of the material, which intensifies the friction between the aggregate particles. Collision and friction promote the removal of adhesive mud and improve the washing effect of flushing water; applying spray water in sections improves the separation and removal of fine powder and muddy impurities. This utility model device can effectively remove fine powder and viscous muddy impurities in building aggregates, and improve the quality of building aggregates.

Utility model content

The purpose of this utility model is to design a method of using mechanical vibration to strengthen the collision, friction and water spray washing between aggregate particles, and to remove the inclusions. It is a desliming device for obtaining clean high-quality aggregates and fine mud impurities adhering to the aggregate.

In order to achieve the above object, the utility model adopts the following technical solutions:

A building aggregate desliming device comprises a sequentially connected feeding hopper, a desliming chamber, and a clean aggregate discharge port. The desliming chamber is provided with several damping plates from its entrance to its exit.

Further, the lower bottom plate of the desilting chamber is a sieve plate; the damping plate includes several upper damping plates arranged at intervals on the upper top plate of the desliming chamber and several upper damping plates arranged at intervals on the sieve plate of the desliming chamber Lower damper plate.

Further, the lower damping plate is fixed vertically to the sieve plate, and the upper damping plate is fixed at an angle of 45° to the upper top plate.

Further, it also includes an exciter for linearly vibrating the desliming chamber; a support seat is provided below the desliming chamber, and the support seat includes an upper support and a lower support arranged sequentially from top to bottom, the upper support An elastic body is connected between the support and the lower support.

Further, a water spray pipe is provided at the entrance of the feed hopper, and the water spray port of the water spray pipe faces the building aggregate entering the entrance of the desilting chamber.

Further, several water spray pipes are provided in the direction from the entrance to the exit of the desliming chamber, and the water spray ports of the water spray pipes face the inside of the desliming chamber.

Beneficial effects: 1. The aggregate in the desilting chamber is constantly changing its movement trajectory under the obstruction of the upper damping plate and the lower damping plate, which intensifies the turning of the material layer and strengthens the collision, friction and flushing effect between particles;

2. The water spray pipe arranged at the feed hopper of the desliming device has the functions of pre-wetting the building aggregate and suppressing dust;

3. The water spray pipes arranged axially on the upper side of the vibrating desliming chamber are mainly to repeatedly clean the moving aggregate;

4. The desliming chamber vibrates under the action of the vibrator and the elastic body. The aggregate moves to the discharge end while vibrating in the vibrating desliming chamber. The particles collide and rub against each other, resulting in adhesion to the bone. The fine particles and muddy components on the material particles fall off and are carried through the sieve plate by the flushing water;

5. The device of the utility model has the characteristics of high desliming efficiency, large processing capacity, simple equipment structure, easy operation and low energy consumption, and conforms to the concept of environmental protection and sustainable development.

Description of drawings

Fig. 1 is the C-D section of the structural representation of the utility model.

Fig. 2 is the A-B cross-section of the structure diagram of the utility model.

Fig. 3 is a top view of the structure diagram of the utility model.

Referring to the accompanying drawings, a building aggregate desliming device includes (1) feed hopper, (2) water spray pipe, (3) upper damping plate, (4) lower damping plate, (5) water inlet pipe, (6) Water inlet regulating valve, (7) desilting chamber, (8) clean aggregate discharge port, (9) muddy water collection funnel, (10) muddy water discharge pipe, (11) upper support, (12) lower support, (13) permeable sieve plate, (14) elastic body, (15) vibration exciter.

Detailed ways

Fig. 1, Fig. 2, Fig. 3 are structural representations of the utility model. The utility model is described in detail below in conjunction with the structural representation.

The building aggregate desliming device provided by the utility model includes a desliming chamber 7, a feed hopper 1 and a clean aggregate discharge port 8. The lower bottom plate of the desliming chamber 7 is a permeable sieve plate 13, and the sieve hole diameter is 1- 4mm, the specific aperture is selected according to actual needs. A muddy water collection funnel 9 is provided below the permeable sieve plate 13 , and the bottom of the muddy water collection funnel 9 is a muddy water discharge pipe 10 . A water spray pipe 2 is provided at the entrance of the feed hopper 1, and several water spray pipes 2 are provided at intervals from the entrance to the exit of the desilting chamber 7. In the desilting chamber 7, several upper damping plates 3 and lower damping plates 4 are arranged at intervals from its entrance to the exit. The upper damping plates 3 are fixed on the upper roof of the desilting chamber 7 at an angle of 45°, and the lower damping plates 4 are vertical Fixed on the permeable sieve plate 13. The water spray pipe 2 is connected to the water inlet pipe 5, and each water spray pipe 2 is provided with a water inlet regulating valve 6. A supporting seat is provided below the desilting chamber 7, and the supporting seat includes an upper support 11 and a lower support 12 arranged sequentially from top to bottom, and an elastic body 14 is connected between the upper support 11 and the lower support 12. The vibrator 15 is installed in the middle of the desilting chamber 7, and the central axis of the vibrator 15 forms an included angle of 45° with the sieve plate in the feeding direction, and vibrates in a straight line.

The mud-containing aggregate is sent into the feed hopper 1 through the feeder, and the spray water sprayed out by the water spray pipe 2 there is wetted and then enters the desilting chamber 7 under the action of gravity, and the spray water is still It can reduce the dust pollution of the feed port. The desliming chamber 7 vibrates linearly under the action of the vibrator 15 and the elastic body 14. The aggregate moves to the discharge end while vibrating in the desliming chamber 7, and the particles collide and rub against each other, resulting in adhesion. The fine particles and muddy components on the aggregate particles fall off and are carried by the flushing water through the permeable sieve plate 13 and enter the muddy water collection funnel 9 under the sieve; The movement trajectory is changed, and the collision, friction and spray cleaning desliming effect between aggregate particles are strengthened; the muddy water is discharged from the muddy water discharge pipe 10, and the cleaned aggregate after desliming is discharged through the clean aggregate discharge port 8.

The water in the water inlet pipe 5 can be clean water or circulating water; the water spray pipe 2 is arranged in sections to facilitate management and control of water volume; the water spray pipe 2 arranged at the feed hopper 1 is mainly for pre-wetting the building aggregate and dust suppression, the amount of water can be adjusted through the regulating valve 6 to improve the effect of dust suppression and wetting; the water spray pipe installed on the upper side of the vibrating desliming chamber 7 is mainly to wash the aggregate and take away fine particles and mud Composition; the water quantity of the water spray pipe 2 can be adjusted in time through the water inlet regulating valve 6.

The vibration system of the desliming device is mainly composed of a vibrator 15, a desliming chamber 7, an upper support 11, a lower support 12, and an elastic body 14; the frequency and vibration intensity of the vibrator 15 can be changed to change the state of motion.

The upper damping plate 3 and the lower damping plate 4 can change the movement track of the aggregate, the upper layer of the material flow moves to the bottom of the material flow under the diversion of the upper damping plate 3, and the material flow of the lower layer moves to the bottom of the material flow under the diversion of the lower damping plate 4. The movement of the upper part of the flow increases the tumbling of the material flow, strengthens the collision, friction and flushing effect between the aggregate particles; Pass through the sieve plate 13, enter the muddy water collection funnel 9, and be discharged by the muddy water discharge pipe 10, and the clean aggregate is discharged through the clean aggregate discharge port 8.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present utility model in detail. For the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (6)

1. The utility model provides a building aggregate desliming device, is including the feeder hopper, the desliming room, the clean aggregate bin outlet that communicate in proper order, its characterized in that, be equipped with a plurality of damping plate in the desliming room from its direction of entry to export.

2. The building aggregate desliming apparatus of claim 1, wherein the lower floor of the desliming chamber is a screen deck; damping plate including the interval set up in damping plate and interval set up in damping plate under a plurality of the indoor top board of desliming in a plurality of the indoor sieve of desliming.

3. The building aggregate desliming device of claim 2, wherein the lower damping plate is vertically fixed with the sieve plate, and the upper damping plate is fixed with the upper top plate at an angle of 45 degrees.

4. The building aggregate desliming device according to claim 1, further comprising an exciter for generating linear vibration of the desliming chamber; the supporting seat is arranged below the desliming chamber and comprises an upper support and a lower support which are sequentially arranged from top to bottom, and an elastic body is connected between the upper support and the lower support.

5. The apparatus for desliming building aggregates according to claim 1, wherein a water spray pipe is provided at the inlet of the feed hopper.

6. The apparatus as claimed in claim 1, wherein a plurality of water spray pipes are provided in the chamber from the inlet to the outlet.