CN204294868U - Resin sand continuous screen separating device - Google Patents

Abstract

A continuous screening device for resin sand, the vibrating bed is further equipped with a fine-mesh screen, the fine-mesh screen is stacked with a coarse-mesh screen, a spring is arranged on each of the front and rear corners of the vibrating bed, and the bottom of the spring is fixed on the supporting stand There is a vibrating motor at the bottom of the vibrating bed, a feeding outlet just above the rear of the coarse mesh, a circulating hopper just above the middle of the coarse mesh, and a tubular extended feeding port at the front end of the fine mesh. The feed port extends to the side to connect with the feed hopper of the hoist, and the discharge port of the hoist is connected with the circulation hopper. The utility model has the advantages of low labor cost, low energy consumption, simple recovery and the like. This project adds an automatic recovery link to the screening process, so that the remaining material is recycled in the running machine, and the unqualified powder in the remaining material is continuously removed and transported to other processes, thereby eliminating manual operations and many recycling links, greatly reducing labor costs and energy consumption.

Description

Resin sand continuous screening device

technical field

The utility model relates to a particle powder production equipment, in particular to a resin sand continuous screening device.

Background technique

The existing vibrating sieving machines have different appearances and structures, but the common principle is that the sieve surface is vibrated at high frequency and with small amplitude, so that the materials on the sieve surface are segregated, so as to select good and bad particles. The screening process of the advanced powder sieving machine only goes through a set of procedures, and the process ends; one is that the qualified powder enters the packaging and other links, and the other is that the unqualified powder enters the recycling link, but the unqualified residual materials eliminated in the screening process are also It must contain qualified sand particles, which also adds a recycling process after screening. Although this can save raw material costs, the added recycling process will not only cause energy consumption but also manual consumption, and once the remaining materials are mixed with raw materials In the normal process, the selection effect and quality will still be limited by the original machine working system.

Contents of the invention

The purpose of the utility model is to provide a resin sand continuous screening device to reduce the problems of high labor cost, large energy consumption and complicated recovery in the existing equipment.

In order to solve the above technical problems, the technical solution provided by the utility model is: a continuous screening device for resin sand, including a support stand, a shock bed is provided on the support stand, and the front end of the shock bed is provided with a shock bed discharge It is characterized in that fine-mesh screens are stacked on the vibrating bed, coarse-mesh screens are stacked on the fine-mesh screens, a spring is arranged on each of the four corners of the front and rear of the vibrating bed, and the bottom of the spring is fixed on the supporting stand. There is a vibrating motor at the bottom, a feeding outlet just above the rear of the coarse mesh, a circulating hopper just above the middle of the coarse mesh, and a tubular extension feeding port at the front end of the fine mesh, which faces sideways The feed hopper of the hoist is extended and connected, and the discharge port of the hoist is connected with the circulation hopper.

As a preference, the two support legs at the front end of the support stand are shorter than the two support legs at the rear end, and a spring is fixed on the upper end plane of the support stand, and the top end of the spring is connected to the bottom surface of the spring pressure plate on the four corners of the vibration bed.

Preferably, the front end of the coarse mesh screen is provided with an open overflow port.

The utility model has the advantages of low labor cost, low energy consumption, simple recovery and the like. This project adds an automatic recovery link to the screening process, so that the remaining materials are recycled in the running machine, and the unqualified powder in the remaining materials is continuously removed and transported to other processes, thereby eliminating manual operations and many recycling links, greatly reducing labor costs and energy consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

The resin sand continuous screening device is mainly composed of a support stand 1, a vibrating bed 2, a fine mesh screen 3, a coarse mesh screen 4, a feeding outlet 5, a circulating hopper 6, a vibration motor 7, a tubular extended feeding port 8, and a hoist. 9. Consists of hoist discharge port 10, shock bed discharge port 18, etc.

The bottom of the shock bed 2 is provided with a vibration motor 7, and a fine mesh screen 3 is also stacked on the shock bed 2, and the front end of the shock bed is provided with a shock bed discharge port 18. A coarse mesh 4 is stacked on the fine mesh 3 , and an open overflow port 11 is provided at the front end of the coarse mesh 4 .

Two bearings 12 of the front end of the support stand are shorter than the two bearing feet 13 of the rear end, and the upper end plane of the feet is fixed with a spring 15, and the top of the spring 15 is welded with the spring pressing plate 16 bottom surfaces on the four corners of the shaking bed 2. There is a feeding outlet 5 directly above the rear of the coarse screen 2, a circulating hopper 6 is provided directly above the middle of the coarse screen 2, and a tubular extension feeding port 8 is provided at the front end of the fine screen, which extends to the side to connect and lift Machine feed port 17, the discharge port 10 of hoister is connected with circulation hopper 6.

When working, the vibrating motor 7 installed at the bottom of the shaking bed 2 starts to operate, driving the shaking bed 2 and the fine-mesh screen 3 and the coarse-mesh screen 4 installed on the shaking bed to vibrate irregularly. The resin sand is put into the coarse-mesh screen 4 from the feeding outlet 5 for the first layer of screening. After vibrating and screening, the large sand particles that do not meet the specifications are kept vibrating and sliding down the inclined surface, and pass through the open overflow port at the front end of the coarse-mesh screen 4 pour out. The rest of the sand falls to the second layer of fine mesh screen 3. Since the holes of the fine mesh screen 3 are the diameters closest to the qualified sand grains, unqualified sand grains can be removed and passed through the front end of the fine mesh screen 3. The material port is sent out, but the qualified sand will leak from the hole and be retained. After being vibrated by the fine-mesh screen 3, the selected sand grains that meet the specifications fall into the shaking bed 2, then continue to vibrate and slide down the inclined surface of the shaking bed 2, and enter other processes through the discharge port 18 at the front end of the shaking bed 2. Unqualified sand and mixed sand continuously vibrate and slide down through the inclined surface of the fine-mesh screen 3 , enter the tube-type extended feeding port 8 , and then enter the elevator 9 from the side of the vibration bed 2 .

Because the holes of the fine-mesh screen 3 can only be larger than the diameter of qualified sand particles, it will increase the screening accuracy, and at the same time, the extrusion between sand particles will also cause poor screening. In this section of the machine, a process must not be completely complete. Pick out the good and bad of all the grit. This requires a second, more refined screening.

The outlet of the pipe-type extended material delivery port 8 is connected to the hoist 9, and the remaining material entered is input from the hoist discharge port 10 to the bin above the circulation hopper 6 through the hoist 9, and exits from the bottom of the circulation hopper 6. Drain to the coarse mesh screen 4, the fine mesh screen 3, and enter the process again for screening. Going round and round, thereby constantly select the qualified resin sand raw material to come out from discharge port 18.

Claims (3)

1. A resin sand continuous screening device, comprising a support stand, the support stand is provided with a shock bed, the front end of the shock bed is provided with a shock bed discharge port, and it is characterized in that the shock bed is also stacked with Fine-mesh sieve, coarse-mesh sieve is stacked on the fine-mesh sieve, a spring is installed on each of the four corners of the shock bed, the bottom of the spring is fixed on the support stand, a vibration motor is installed at the bottom of the shock bed, and the rear of the coarse-mesh sieve is directly above There is a feeding outlet, and a circulating hopper is provided directly above the middle of the coarse-mesh screen. The front end of the fine-mesh screen is provided with a tube-type extended feeding port. The feeding port extends to the side to connect to the feed hopper of the elevator. The mouth is connected with the circulating hopper. 2. The resin sand continuous screening device according to claim 1, characterized in that the two support feet at the front end of the support stand are shorter than the two support feet at the rear end, and a spring is fixed on the upper end plane of the support stand, and the top of the spring is in contact with the shock The bottom surface of the spring pressure plate on the four corners of the bed is connected. 3. The resin sand continuous screening device according to claim 1, characterized in that the front end of the coarse-mesh screen is provided with an open overflow port.