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Vacuum drying furnace

A technology of vacuum drying furnace and vacuum device, which is applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., which can solve the problems of unguaranteed sealing at the feed inlet, increased energy consumption, and inability to effectively maintain the vacuum degree, etc. problems, to achieve the effect of ensuring vacuum drying effect, solving sealing problems, and avoiding insufficient drying

Inactive Publication Date: 2021-03-12
WUXI XIYUAN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the drying furnace of this application can improve the drying effect of materials, the sealing performance at the feed inlet cannot be guaranteed during long-term use, resulting in the inability to effectively maintain the vacuum degree during the drying process and increasing energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The vacuum drying furnace of this embodiment, including,

[0048] The furnace body 1, which is horizontally, and the top side is formed on the top side, and the on the other side forms an air outlet 12, and the bottom side is formed.

[0049] The stirring mechanism 2 is provided in the furnace body 1, and the material in the furnace body 1 is stirred;

[0050] Vacuum device 5, which is in communication with the air outlet 12 of the furnace body 1, and maintain a negative pressure environment inside the furnace body 1;

[0051] Also included, the feeding device 3 includes:

[0052] The fraft 30, which is a funnel-like shape, composed of the flange port 300 and the vertical communication with the tube 301 at the bottom of the flange 300, and the fracture 30 is placed directly above the feed port 10;

[0053] The lifting mechanism 31, which is arranged on the side of the fed struggle, and controls the lifting of the fighter 30; and

[0054] The sealing gate 4 is disposed at th...

Embodiment 2

[0059] The vacuum drying furnace of the present embodiment is further improved on the basis of Example 1, and the lifting mechanism 31 includes:

[0060] The guide rod 310 is disposed vertically, and is fixed to the top of the furnace body 1 next to the fed strip 30;

[0061] The moving clip 311, the horizontal setting, slides on the guide rod 310, and one end is sandwiched 30;

[0062] The drive 312 is driven to drive the moving clip 311 lift.

[0063] Such as figure 2 As shown, the guide rod 310 performs limit and orientation to the motion trajectory of the moving clip 311, the guide rod 310 of the present embodiment is a quadrush, the middle portion of the moving clip 311, the hole type matches the four prismatic cross-sectional shape, and the sleeve is guided On the rod 310, thereby, the moving clip 311 can only rise and fall under the guide rod 310; the moving clip 311 is a clamping portion, which can clamp the flange 300 of the fed strip 30, and the fighter 30 can be detach...

Embodiment 3

[0065] The vacuum drying furnace of the present embodiment is further improved on the basis of Example 2, and the mixing mechanism 2 includes:

[0066] The shaft is disposed in the middle of the furnace body 1;

[0067] Spiral blades 20, which are fixed to the shaft.

[0068] Such as figure 1 As shown, the shaft is disposed on the center axis of the furnace body 1, driven by the drive device, and the spiral blade 20 also rotates in the rotation of the shaft, during the drying process, the spiral blade 20 can be cut when rotating Mud and drive the sludge movement, thereby ensuring sufficient agitation of sludge and crushing in the drying process, avoiding drying in sufficient agglomeration.

[0069] Further, when the drying is completed, the material guide can be sent from the discharge port 11 by controlling the direction of rotation of the spiral blade 20, and the principle of the principle of the helix feeder can be used.

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Abstract

The invention discloses a vacuum drying furnace, and belongs to the field of heating and drying equipment. The vacuum drying furnace comprises a furnace body provided with a charging port and an air outlet port in the top, and provided with a discharging port in the bottom, a stirring mechanism arranged in the furnace body; and a vacuum device communicating with the air outlet port of the furnacebody to keep a negative pressure environment in the furnace body. The vacuum drying furnace further comprises a feeding device, wherein the feeding device comprises a feeding hopper which is funnel-shaped, composed of a horn mouth and a material guide pipe vertically communicated to the bottom of the horn mouth, and arranged over the charging port, a lifting mechanism which is arranged at one sideof the feeding hopper and controls the lifting of the feeding hopper, and a sealing gate which is arranged at the charging port and controls the opening and closing of the charging port. According tothe invention, through the design for the feeding device, no sludge adheres to the charging port in a feeding process, the sealing gate is closed after feeding is completed, and the sealing performance of the furnace body can be effectively guaranteed, so that the sealing performance problem existing in an existing vacuum drying furnace is solved, the vacuum drying effect is guaranteed, and energy consumption for maintaining a vacuum degree is reduced.

Description

Technical field [0001] The present invention belongs to the field of heating and drying equipment, and more particularly to a vacuum drying furnace. Background technique [0002] Sludge is the product in the sewage treatment, containing a large amount of organic matter, heavy metals and mold, etc., if it is not subsequently related to the environment, it is often necessary to concentrate and dehydrate the sludge, but after this process The latter moisture content is usually more than 70%, and the sludge is also required to further dry treatment. [0003] When the existing sludge drying furnace is drying, it does not effectively and uniformly dry the sludge in the furnace, the final product is uneven, and the existing sludge dry vacuum drying furnace The sealing is poor, it is difficult to maintain the need for a vacuum, resulting in a significant increase in the energy consumption of the entire drying process. [0004] Afterwards, China Patent Publication No.: CN 205316868 U; Pub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/04F26B17/20F26B23/00F26B25/04F26B25/02F26B25/00C02F11/13
CPCF26B5/04F26B17/20F26B23/00F26B25/04F26B25/02F26B25/00C02F11/13
Inventor 冯晓宏
Owner WUXI XIYUAN BOILER
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