CN217573623U - Granule mixing device - Google Patents

Abstract

The utility model discloses a granular material mixing device, which relates to the field of mixing devices. A granular material mixing device comprises a frame, the frame is provided with a mixing tank, and the top of the mixing tank is connected with two A first air inlet duct and a second air inlet duct, the bottom of the mixing tank is connected with two circulation pipes, the upper ends of the two circulation pipes are respectively connected with the side walls of the two first air inlet ducts, and the second air inlet A feed pipe is connected to the side wall of the air duct, the lower end of the feed pipe is connected to the hopper, and the tops of the first air duct and the second air duct are respectively connected with a set of air intake components. The utility model can quickly and uniformly mix the plastic particles of two particle sizes by driving the granule material to circulate and mix by air flow, which not only saves the mixing time, but also does not damage or destroy the plastic particles, and the mixing is more uniform, and the efficiency of the homogenizing material is improved. .

Description

A particle mixing device

technical field

The utility model relates to the field of mixing devices, in particular to a granular material mixing device.

Background technique

In order to ensure that the overall thermal melting of the plastic particles is more uniform in the heating extrusion step, it is necessary to control the particle size of the plastic particles to avoid the particle size being too large to be thermally melted, or the particle size being too small and the thermal melting is too fast and the fluidity is too large. . Therefore, it is necessary to sieve the plastic particles in advance, and then homogeneously mix the sieved plastic particles with different particle sizes as the extrusion raw material, so as to ensure that the particle size of the particles can be within the appropriate particle size range. , to ensure the quality of extrusion parts. Existing plastic particle mixing devices mainly use stirring paddles for mixing. This mechanical stirring and mixing method has low mixing efficiency. In order to ensure uniform mixing of particles of two particle sizes, it requires a long time of stirring, which is time-consuming and labor-intensive. Moreover, this mechanical stirring method is easy to break the plastic particles, resulting in smaller particles or debris, resulting in uneven particle size of the mixture, which has a greater impact on the subsequent extrusion quality.

Utility model content

The purpose of this utility model is to provide a granular material mixing device, which utilizes circulating air flow to drive plastic particles of different particle sizes to quickly and fully mix, and solves many problems caused by the above-mentioned mechanical stirring and mixing of granular materials.

In order to solve the above-mentioned problems, the utility model provides the following technical solutions:

A granular material mixing device, comprising a frame, a mixing tank is arranged on the frame, and two first air inlet ducts and a second air inlet duct are connected to the top of the mixing tank. The bottom is connected with two circulation pipes, the upper ends of the two circulation pipes are respectively connected with the side walls of the two first air inlets, the side walls of the second air inlets are connected with feed pipes, and the lower ends of the feed pipes are connected with each other. Connecting the hopper, the tops of the first air inlet duct and the second air inlet duct are respectively connected with a set of air inlet assemblies, and the air inlet assemblies are directed from top to bottom from the top of the first air inlet duct or the second air inlet duct. Pressurized air.

Preferably, the air inlet assembly includes a fan arranged at the lower part of the frame, and the air outlet of the fan is connected with an air inlet pipe, wherein the upper end of one air inlet pipe is connected to the top of the first air inlet duct, and the other air inlet The upper end of the pipe is communicated with the top of the second air inlet duct.

Preferably, the connecting part of the fan and the air inlet pipe is provided with a buffer cylinder.

Preferably, a pressure relief valve is provided on the top of the mixing tank, and a discharge pipe is communicated with the bottom of the mixing tank, and a solenoid valve is provided on the discharge pipe.

Preferably, the upper part of the mixing tank is cylindrical, the lower part is funnel-shaped, and the bottom end of the mixing tank is closed.

The advantages of the present utility model are:

The utility model generates high-speed air flow from top to bottom through two fans, thereby sucking the granular material into the first air inlet duct or the second air inlet duct, and provides power by continuously blowing in the positive pressure air flow, and through the circulation pipe The granular materials in the mixing tank are mixed by air circulation, and the circular mixing of the granular materials by the air flow can quickly and evenly mix the plastic particles of two particle sizes, which not only saves the mixing time, but also does not damage or destroy the plastic particles, and the mixing is more efficient. Homogeneous, improving the efficiency of homogenization.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a side view of the utility model.

FIG. 3 is a top view of the utility model.

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3 .

Among them, 1-frame, 2-mixing tank, 21-first air inlet, 22-discharge pipe, 23-second air inlet, 24-pressure relief valve, 3-fan, 31-buffer tube, 32 -Inlet pipe, 4-circulation pipe, 5-feed pipe.

Detailed ways

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments.

As shown in Figures 1 to 4, a granular material mixing device includes a frame 1, and a mixing tank 2 is arranged on the frame 1, the upper part of the mixing tank 2 is cylindrical, and the lower part is a funnel-shaped, The bottom end of the mixing tank 2 is closed. The top of the mixing tank 2 is connected with two first air inlets 21 and a second air inlet 23, the bottom of the mixing tank 2 is connected with two circulation pipes 4, and the upper ends of the two circulation pipes 4 are connected respectively. The side walls of the two first air inlet ducts 21 and the side walls of the second air inlet duct 23 are connected with a feed pipe 5, and the lower end of the feed pipe 5 is connected with a hopper, and the first air inlet duct 21 and The top of the second air inlet duct 23 is respectively connected with a set of air inlet assemblies, there are two groups of air inlet assemblies in total, and the air inlet assemblies are positively pressurized from top to bottom from the top of the first air inlet duct 21 or the second air inlet duct 23 air supply. The funnel-shaped lower part of the mixing tank 2 can collect the granular materials and then enter the circulation pipe 4 for upward circulation and mixing, so as to ensure that the particles can be fully carried and mixed by the air flow.

In this embodiment, the air inlet assembly includes a fan 3 located at the lower part of the frame 1 , the air outlet of the fan 3 is connected with an air inlet pipe 32 , and the upper end of one air inlet pipe 32 is connected to the first air inlet On the top of the cylinder 21 , the upper end of the other air inlet pipe 32 is communicated with the top of the second air inlet cylinder 23 . A buffer cylinder 31 is provided at the connection part of the fan 3 and the air inlet pipe 32 . The buffer cylinder 31 can prevent the particulate material from being sucked back into the fan 3 when the fan 3 is turned off, and can also increase the stability of the airflow.

In this embodiment, the top of the mixing tank 2 is provided with a pressure relief valve 24, and the bottom of the mixing tank 2 is connected with a discharge pipe 22, and the discharge pipe 22 is provided with a solenoid valve. The pressure relief valve 24 can prevent the air pressure of the mixing tank 2 from being too high. When the fan 3 continuously blows air into the mixing tank 2, the air pressure will increase accordingly. When the pressure is higher than the upper limit, the pressure can be released through the pressure relief valve 24.

Working process and principle:

First, the sorted small-sized plastic particles are loaded into the hopper, and the bottom of the hopper is connected to the feeding pipe 5 through a hose. Then the two fans 3 are turned on, and the two fans 3 blow the air upward through the buffer tube 31 through the air inlet duct 32 into the first air inlet duct 21 or the second air inlet duct 23 , and the air inlet duct 32 and the first air inlet duct 21 Or the connecting part of the second air inlet duct 23 adopts a T-shaped pipe, and the top of the T-shaped pipe is closed, so that the air enters the first air inlet duct 21 or the second air inlet duct 23 vertically from top to bottom, and then enters the mixing tank 2 . Since the airflow passes through the first air inlet duct 21 or the second air inlet duct 23 at a high speed downward, the plastic particles in the feed pipe 5 or the circulation pipe 4 can be sucked upward into the first air inlet duct 21 or the second air inlet duct 23 And into the mixing tank 2, the plastic particles fall down to the bottom of the mixing tank 2 and then enter the circulation pipe 4 with the airflow, and circulate upwards into the first air inlet duct 21, thus completing the circulation of the pellets. When the small-diameter plastic particles in the hopper are completely sucked into the mixing tank 2 and begin to circulate, the large-diameter plastic particles are added to the hopper, and the large-diameter plastic particles are continuously sucked into the mixing tank 2, which is mixed with the small-diameter plastic particles. The particles start to be cyclically mixed under the action of wind, until the large-diameter plastic particles completely enter the mixing tank 2, and the two fans 3 are closed after continuing the wind circulation and mixing for a period of time. At this time, the mixed plastic particles gather at the bottom of the mixing tank 2. Open the discharge pipe 22 and discharge the mixture.

It can be known from the technical common sense that the present invention can be realized by other embodiments without departing from its spirit or essential characteristics. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims (5)

1. A granular material mixing device, characterized in that it comprises a frame (1), the frame (1) is provided with a mixing tank (2), and the top of the mixing tank (2) is communicated with two A first air inlet duct (21) and a second air inlet duct (23), the bottom of the mixing tank (2) is connected with two circulation pipes (4), and the upper ends of the two circulation pipes (4) are connected with two circulation pipes (4) respectively. The side wall of the first air inlet duct (21), the side wall of the second air inlet duct (23) is communicated with a feeding pipe (5), and the lower end of the feeding pipe (5) is communicated with a hopper. The tops of the first air inlet duct (21) and the second air inlet duct (23) are respectively connected with a set of air inlet assemblies, the air inlet assemblies are connected from the first air inlet duct (21) or the second air inlet duct (23) The top of the positive pressure air supply from top to bottom. 2. A granular material mixing device according to claim 1, characterized in that the air inlet assembly comprises a fan (3) arranged at the lower part of the frame (1), and an air outlet of the fan (3) An air inlet pipe (32) is communicated with, wherein the upper end of one air inlet pipe (32) is connected to the top of the first air inlet duct (21), and the upper end of the other air inlet duct (32) is communicated with the second air inlet duct (32). 23) at the top. 3 . The granular material mixing device according to claim 2 , wherein a buffer cylinder ( 31 ) is provided at the connection part of the fan ( 3 ) and the air inlet pipe ( 32 ). 4 . 4. A granular material mixing device according to claim 3, characterized in that, a pressure relief valve (24) is provided on the top of the mixing tank (2), and the bottom of the mixing tank (2) is communicated with a discharge The pipe (22) is provided with a solenoid valve on the discharge pipe (22). 5. A granular material mixing device according to claim 4, characterized in that the upper part of the mixing tank (2) is cylindrical, the lower part is a funnel shape, and the bottom end of the mixing tank (2) is closed.

Images