Intermittent boiling dryer discharge equipment

Abstract

The utility model discloses an intermittent boiling dryer discharging device, including a dryer cylinder, a boiling bed plate inside the dryer cylinder, a discharging port on the side of the dryer cylinder, the discharging port is located on the side of the boiling bed plate, a discharging valve is installed at the discharging port, the discharging valve includes a discharging valve body arranged in a horizontal direction, a plug slidably connected to the discharging valve body is arranged inside the discharging valve body; an exhaust communication pipe is arranged above the discharging valve body, the bottom end of the exhaust communication pipe is connected to the discharging valve body, the top end of the exhaust communication pipe is connected to the top of the inner cavity of the dryer cylinder, and an exhaust valve is installed on the exhaust communication pipe; a rotary valve is arranged below the body of the discharging valve body. The intermittent boiling dryer discharging device provided by the utility model can solve the problems of much wind entrained by materials in the later stage of discharging, material spilling and waste, and low discharging efficiency.

Description

Technical Field

[0001] The utility model relates to discharging equipment for an intermittent fluidized bed dryer, belonging to the technical field of fluidized bed drying. Background Art

[0002] Working process of fluidized bed drying: Bulk solid materials are added into the dryer through the feeder, and the filtered clean air is heated and sent to the bottom of the fluidized bed by the blower, and contacts the solid materials through the distribution plate, forming fluidization to achieve gas-solid heat and mass exchange. After the materials are dried, they are discharged from the discharge port, and the exhaust gas is discharged from the top of the fluidized bed, and the solid powder is recovered by the cyclone dust collector and bag dust collector before being emptied.

[0003] Commonly used boiling dryers are: horizontal multi-chamber boiling dryer, also known as fluidized bed; vertical boiling dryer, also known as boiling bed; horizontal multi-chamber boiling dryer is generally used for continuous drying production, while vertical boiling dryer is mostly used for intermittent drying production.

[0004] At present, when discharging materials from intermittent fluidized bed dryers, the materials are pushed to the discharge port by stirring or wind pressure in the bed in the early stage of discharging. As the material level in the bed decreases, the material is carried out by the flow of wind. In the later stage of discharging, there will be serious wind leakage and a lot of wind entrained in the materials. If the packaging materials or equipment used for discharging are well sealed in the later stage of discharging, the amount of material spilling and waste will be reduced, but the discharging efficiency will be relatively low; if the sealing is not good, the material spilling and waste will be very serious.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] The utility model aims at the deficiencies in the background technology and provides an intermittent boiling dryer discharging device, which can solve the problems of excessive wind entrainment of materials in the late stage of discharging, material spillage and waste, and low discharging efficiency.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The discharging device of the intermittent fluidized bed dryer comprises a dryer cylinder, a fluidized bed plate is arranged inside the dryer cylinder, a discharging port is arranged on the side of the dryer cylinder, the discharging port is located on the side of the fluidized bed plate, a discharging valve is installed at the discharging port, the discharging valve comprises a discharging valve body arranged in a horizontal direction, a plug is arranged inside the discharging valve body and is slidably connected with the discharging valve body;

[0009] An exhaust communication pipe is provided above the discharge valve body, the bottom end of the exhaust communication pipe is connected to the discharge valve body, the top end of the exhaust communication pipe is connected to the top of the inner cavity of the dryer cylinder, and an exhaust valve is installed on the exhaust communication pipe; a rotary valve is provided below the body of the discharge valve body.

[0010] Furthermore, the bottom of the inner cavity of the dryer cylinder is connected to the hot air inlet pipe, and the top of the inner cavity of the dryer cylinder is connected to the exhaust gas exhaust pipe.

[0011] Furthermore, the plug is connected to the head of the cylinder piston rod, and the cylinder body of the cylinder is fixedly connected to the end of the discharge valve body away from the dryer cylinder.

[0012] Furthermore, the cylinder, exhaust valve and rotary valve are all electrically connected to the system controller.

[0013] Furthermore, the exhaust gas communicating pipe is communicated with the inner cavity of the discharge valve body, and the connection between the exhaust gas communicating pipe and the discharge valve body is arranged close to the dryer cylinder.

[0014] Furthermore, an agitator is installed above the boiling bed.

[0015] Furthermore, the outlet of the rotary valve is connected to a material receiving device or a package.

[0016] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0017] When discharging, the material enters the discharging valve, and the air returns to the dryer cylinder through the exhaust pipe and the exhaust valve. The material enters the material conveying pipeline after passing through the rotary valve, which solves the problem of excessive entrainment of the material with wind, material spillage and serious waste in the late stage of discharging;

[0018] There is a wind pressure difference between the upper and lower parts of the material layer in the dryer cylinder, which speeds up the flow of wind in the discharge valve. The wind can bring the material into the discharge valve faster, improving the discharge efficiency in the later stage of discharging.

[0019] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0022] In the figure, 1-hot air inlet pipe, 2-waste gas exhaust pipe, 3-dryer cylinder, 4-agitator, 5-exhaust valve, 6-exhaust connecting pipe, 7-cylinder, 8-rotary valve, 9-discharge valve, 901-discharge valve body, 902-plug, 10-discharge port, 11-boiling bed plate, 12-system controller. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown together, the utility model provides an intermittent boiling dryer discharging device, including a dryer cylinder 3, a boiling bed plate 11 is arranged inside the dryer cylinder 3, and an agitator 4 is installed above the boiling bed plate 11.

[0025] The bottom of the inner cavity of the dryer cylinder 3 is connected to the hot air inlet pipe 1 , and the top of the inner cavity of the dryer cylinder 3 is connected to the exhaust gas exhaust pipe 2 .

[0026] A discharge port 10 is provided on the side of the dryer cylinder 3 , and the discharge port 10 is located on the side of the boiling bed plate 11 . A discharge valve 9 is installed at the discharge port 10 .

[0027] The discharge valve 9 comprises a discharge valve body 901 arranged in the horizontal direction, and a plug 902 slidably connected to the discharge valve body 901 is arranged inside the discharge valve body 901 .

[0028] The plug 902 is connected to the head of the piston rod of the cylinder 7, and the cylinder body of the cylinder 7 is fixedly connected to the end of the discharge valve body 901 away from the dryer cylinder 3.

[0029] The inner wall of the discharge valve body 901 is smooth, and the discharge valve body 901 has the characteristics of corrosion resistance, wear resistance, and high temperature resistance.

[0030] The stopper 902 is made of a wear-resistant and high-temperature-resistant polymer material and has a certain elasticity.

[0031] An exhaust communicating pipe 6 is provided above the discharge valve body 901, the bottom end of the exhaust communicating pipe 6 is connected to the discharge valve body 901, the exhaust communicating pipe 6 is communicated with the inner cavity of the discharge valve body 901, and the connection between the exhaust communicating pipe 6 and the discharge valve body 901 is arranged close to the dryer cylinder 3; the top end of the exhaust communicating pipe 6 is connected to the top of the inner cavity of the dryer cylinder 3, and the inner cavities of the two are communicated.

[0032] An exhaust valve 5 is installed on the exhaust communication pipe 6 , and the exhaust valve 5 is used to control the on-off of the airflow in the exhaust communication pipe 6 .

[0033] A rotary valve 8 is provided below the main body of the discharge valve body 901, and an outlet of the rotary valve 8 is connected to a material receiving device or a package.

[0034] The cylinder 7 , the exhaust valve 5 and the rotary valve 8 are all electrically connected to the system controller 12 .

[0035] The specific working principle of this utility model:

[0036] When discharging, the plug 902 of the discharging valve 9 is opened by the cylinder 7, the material enters the discharging valve 9, the gas returns to the dryer cylinder 3 through the exhaust pipe 6 and the exhaust valve 5, and the material enters the material conveying pipe after passing through the rotary valve 8. The exhaust valve 5 is opened when discharging, and closed when not discharging.

[0037] There is a wind pressure difference between the upper and lower parts of the material layer in the dryer cylinder 3, the discharge port 10 is located at the lower part of the material layer, and the exhaust pipe 6 is connected to the top of the dryer cylinder 3, which is equivalent to being connected to the upper part of the material layer. The flow of wind in the discharge valve 9 is accelerated, and the wind can bring the material into the discharge valve 9 faster, thereby improving the discharge efficiency.

[0038] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An intermittent fluidized bed dryer discharge device, comprising a dryer cylinder (3), a fluidized bed plate (11) disposed inside the dryer cylinder (3), a discharge port (10) disposed on the side of the dryer cylinder (3), and the discharge port (10) being located on the side of the fluidized bed plate (11), characterized in that: A discharge valve (9) is installed at the discharge port (10), and the discharge valve (9) comprises a discharge valve body (901) arranged in a horizontal direction, and a plug (902) is provided inside the discharge valve body (901) and is slidably connected to the discharge valve body (901); An exhaust communication pipe (6) is provided above the discharge valve body (901); the bottom end of the exhaust communication pipe (6) is connected to the discharge valve body (901); the top end of the exhaust communication pipe (6) is connected to the top of the inner cavity of the dryer cylinder (3); an exhaust valve (5) is installed on the exhaust communication pipe (6); and a rotary valve (8) is provided below the discharge valve body (901).

2. The discharging device of the intermittent fluidized bed dryer according to claim 1, characterized in that: The bottom of the inner cavity of the dryer cylinder (3) is connected to the hot air inlet pipe (1), and the top of the inner cavity of the dryer cylinder (3) is connected to the exhaust gas exhaust pipe (2).

3. The discharging device of the intermittent fluidized bed dryer according to claim 1, characterized in that: The stopper (902) is connected to the head of the piston rod of the cylinder (7), and the cylinder body of the cylinder (7) is fixedly connected to the end of the discharge valve body (901) away from the dryer cylinder (3).

4. The discharging device of the intermittent fluidized bed dryer according to claim 3, characterized in that: The cylinder (7), the exhaust valve (5) and the rotary valve (8) are all electrically connected to the system controller (12).

5. The discharging device of the intermittent fluidized bed dryer according to claim 1, characterized in that: The exhaust gas communication pipe (6) is connected to the inner cavity of the discharge valve body (901), and the connection between the exhaust gas communication pipe (6) and the discharge valve body (901) is arranged close to the dryer cylinder (3).

6. The discharging device of the intermittent fluidized bed dryer according to claim 1, characterized in that: A stirrer (4) is installed above the boiling bed plate (11).

7. The discharging device of the intermittent fluidized bed dryer according to claim 1, characterized in that: The outlet of the rotary valve (8) is connected to a material receiving device or packaging.

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