Waste heat efficient utilization device for drying glutinous rice flour

Abstract

The utility model relates to the technical field, in particular to an efficient waste heat utilization device for drying glutinous rice flour, and aims to solve the technical problem that the glutinous rice flour with higher density cannot be uniformly preheated even though waste heat is used for preheating in the prior art. The two ends of the gas injection pipe in the conveying cylinder are communicated with two gas distribution pipes, a plurality of spiral pipes with the same rotating direction and equal screw pitches are communicated between the two gas distribution pipes, the inner-layer spiral pipe is connected with the gas injection pipe, the outer-layer spiral pipe is in contact with the inner wall of the conveying cylinder, and the gas injection pipe in the area covered by the spiral pipes is arranged in a solid mode; the conveying cylinder is fixed through the support, high-temperature gas is guided into the spiral pipe, the temperature of the spiral pipe rises to heat air in the conveying cylinder and make direct contact with glutinous rice flour at the same time, and the glutinous rice flour is evenly preheated without dead corners while conveyed. Therefore, the problem that hot air cannot preheat lower-layer glutinous rice flour and raise dust in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field, and the specific field is a kind of glutinous rice flour drying and efficient utilization device of waste heat. BACKGROUND

[0002] Under the background of energy increasingly nervous and environmental protection increasingly strict, all walks of life are seeking the method of improving energy utilization efficiency, reducing energy consumption.For glutinous rice flour drying industry, it has important practical significance to realize the efficient utilization of waste heat.On the one hand, it can reduce the energy cost in production process, improve the economic benefit of enterprise;On the other hand, it is also helpful to reduce energy consumption and greenhouse gas emissions, meet the requirements of sustainable development, in order to improve the energy utilization efficiency in the process of glutinous rice flour drying, reduce production cost, reduce environmental pollution, it is important and necessary to develop special glutinous rice flour drying and efficient utilization device of waste heat.

[0003] Prior art installs heat exchanger on the exhaust gas discharge pipeline of drying equipment, cold air is heated after passing through heat exchanger, can be used as supplementary hot air in drying process, for preheating glutinous rice powder, so although waste heat is utilized, but pure hot air directly irradiates glutinous rice powder and cannot make high-density glutinous rice powder preheat uniformly, there is dust problem. UTILITY MODEL CONTENT

[0004] The utility model discloses in order to solve the technical problem that although prior art utilizes waste heat to preheat, but pure hot air directly irradiates glutinous rice powder and cannot make high-density glutinous rice powder preheat uniformly, there is dust, and further provides a kind of glutinous rice flour drying and efficient utilization device of waste heat.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of glutinous rice flour drying and efficient utilization device of waste heat, comprising: injection pipe, injection pipe rotation is connected at the both ends of conveying cylinder, two ends of injection pipe in conveying cylinder are communicated with two branch pipes, multiple same helical pipe of same rotation direction, equal pitch are communicated between the two branch pipes, inner layer helical pipe is connected with injection pipe, outer layer helical pipe is in contact with the inner wall of conveying cylinder, the solid setting of injection pipe in helical pipe coverage area, conveying cylinder one end is communicated with injection tube, conveying cylinder other end is provided with discharge port, conveying cylinder is fixed by support.

[0006] Preferably, conveying cylinder includes metal layer, heat preservation layer, protective layer arranged in sequence from inside to outside, and injection port is communicated with the upper part of protective layer.

[0007] Preferably, a plurality of waste heat channels are evenly distributed in the inner wall of metal layer cylinder along the axial circumference, and each waste heat channel is communicated with a corresponding branch pipe at both ends, and the branch pipe on the same side is communicated with a gas chamber at the other end, and the gas chamber is communicated with the main pipe.

[0008] Preferably, the waste heat channels are evenly distributed in the lower half of the metal layer cylinder wall.

[0009] Compared with the prior art, the present application has the advantages of:

[0010] The high-temperature gas is introduced into the spiral pipe, the temperature of the spiral pipe is increased to heat the air in the conveying cylinder, and the spiral pipe directly contacts the glutinous rice powder, so that the glutinous rice powder is uniformly preheated without dead angle while being conveyed, and the problem that the lower glutinous rice powder cannot be preheated by hot air and dust is raised is solved.

[0011] The heat preservation layer of the conveying cylinder avoids internal heat loss, the residual heat channel in the metal layer introduces high-temperature gas, the temperature in the metal layer directly contacting the glutinous rice powder is increased, and the preheating effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Structure of the present application Figure 1 ;

[0013] Figure 2 Structure of the present application

[0014] Figure 3 Structure of the present application Figure 2 .

[0015] In the figure: gas injection pipe 1; conveying cylinder 2; metal layer 21; heat preservation layer 22; protective layer 23; glue injection port 24; gas distribution pipe 3; spiral pipe 4; material injection pipe 5; material discharge port 6; support 7; branch gas pipe 8; air chamber 9; main pipe 10. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] The rotary connection in the device refers to fixing the bearing on the shaft by baking, and the shaft or shaft hole is provided with a spring retainer groove, and the elastic retainer is clamped in the retainer groove to realize the axial fixation of the bearing and realize rotation.

[0018] The present application will be described in detail below with reference to the drawings.

[0019] The present application will be described in detail below with reference to the drawings. Figures 1-3The embodiment relates to a kind of glutinous rice powder drying and efficient utilization device of waste heat, comprising: injection pipe 1, injection pipe 1 rotationally connects in conveying cylinder 2 both ends, two ends of injection pipe 1 in conveying cylinder 2 are communicated with two branch pipes 3, multiple same helical pipe 4 of same rotation, equal pitch are communicated between two branch pipes 3, inner layer helical pipe 4 is connected with injection pipe 1, outer layer helical pipe 4 is in contact with the inner wall of conveying cylinder 2, the solid setting of injection pipe 1 in the helical pipe 4 coverage area, conveying cylinder 2 one end is communicated with injection pipe 5, conveying cylinder 2 other end is provided with discharge port 6, conveying cylinder 2 is fixed by support 7.

[0020] Glutinous rice powder is injected into conveying cylinder 2 by injection pipe 5, high-temperature gas is injected into injection pipe 1, high-temperature gas enters different helical pipe 4 by branch pipe 3, and then flows back to injection pipe 1 by end branch pipe 3 and is discharged, the transmission of high-temperature gas makes the temperature of helical pipe 4 rise, after reaching preset temperature, the power of injection pipe 1 is started, injection pipe 1 drives helical pipe 4 to rotate and conveys glutinous rice powder to discharge port 6, helical pipe 4 heats the air in conveying cylinder 2 at the same time and directly contacts with glutinous rice powder, uniformly preheats glutinous rice powder without dead angle, so that the problem that existing technology hot air cannot preheat lower glutinous rice powder and dust is solved.

[0021] Conveying cylinder 2 includes metal layer 21, heat preservation layer 22 and protection layer 23 arranged in sequence from inside to outside, and injection port 24 is communicated with the upper portion of protection layer 23.

[0022] Heat loss in the inside of conveying cylinder 2 is avoided by heat conduction.

[0023] A plurality of waste heat channels are evenly arranged in the inside of the cylinder wall of metal layer 21 along the axis and the circumference, corresponding branch pipes 8 are communicated with both ends of each waste heat channel, gas chambers 9 are communicated with the other ends of branch pipes 8 on the same side, and the gas chambers 9 are communicated with main pipes 10.

[0024] High-temperature gas is injected through one side main pipe 10, and the high-temperature gas is injected into the waste heat channels of metal layer 21 through gas chambers 9 and branch pipes 8, so that the temperature of metal layer 21 directly contacted with glutinous rice powder is increased, and the preheating effect is better.

[0025] The waste heat channels are evenly arranged in the lower half of the cylinder wall of metal layer 21.

[0026] Heat is concentrated in the lower half of metal layer 21 for conveying glutinous rice powder, so that the temperature of the lower half is higher, and the preheating effect is better.

[0027] In the description of the application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0028] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0029] Although the embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A waxy rice flour drying waste heat efficient utilization device, characterized by: The utility model relates to a kind of injection tube (1), injection tube (1) is rotatably connected in conveying cylinder (2) both ends, two ends in conveying cylinder (2) of injection tube (1) are communicated with two branch pipes (3), multiple helical pipes (4) of same rotation direction, equal pitch are communicated between two branch pipes (3), inner layer helical pipe (4) is connected with injection tube (1), outer layer helical pipe (4) is contacted with the inner wall of conveying cylinder (2), solid setting is set in the helical pipe (4) coverage area injection tube (1), conveying cylinder (2) one end is communicated with injection pipe (5), conveying cylinder (2) other end is provided with discharge port (6), conveying cylinder (2) is fixed by support (7). The conveying cylinder (2) includes a metal layer (21), an insulation layer (22), and a protective layer (23) arranged in order from the inside to the outside. The protective layer (23) is connected with a glue injection port (24) at the upper part.

2. The device for efficient utilization of waste heat for drying glutinous rice powder according to claim 1, characterized in that: The metal layer (21) is provided with a plurality of waste heat channels in the inner wall along the axial direction and is evenly distributed in the circumferential direction. Each waste heat channel is connected with a corresponding branch pipe (8) at both ends. The branch pipes (8) on the same side are connected with an air chamber (9) at the other end. The air chamber (9) is connected with a main pipe (10).

3. The device for efficient utilization of waste heat for drying glutinous rice powder according to claim 2, characterized in that: The waste heat channels are evenly distributed in the lower half of the metal layer (21) wall.

4. The device for efficient utilization of waste heat for drying glutinous rice powder according to claim 3, characterized in that: ​

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