High-strength clinker preheating device

Abstract

The utility model relates to the technical field of high-strength clinker preheating, in particular to a high-strength clinker preheating device which comprises a shell, a top plate is fixedly connected to the top end of the shell, a feeding port is formed in the top end of the top plate, a feeding pipe is fixedly connected to the top end of the feeding port, and a feeding hopper is fixedly connected to the top end of the feeding pipe. According to the stirring device disclosed by the utility model, components such as the outer shell, the heating layer, the motor, the rotating shaft, the packing auger, the heating liner and the inner shell are arranged, the rotating shaft is driven by the motor to rotate, the packing auger is driven by the rotating shaft to rotate, the packing auger is heated by the heating liner in the packing auger, and under the action of the packing auger and the stirring rod, the packing auger rotates along with the rotation of the packing auger; according to the calcining device, powder is spread on the auger, the powder is heated through the heated auger, and the auger and the heating layer are used in cooperation and heated together, so that the powder is heated more sufficiently, and the problem that most of existing calcining devices need to put crushed raw materials into a preheater to be preheated before calcining is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-strength clinker preheating, in particular to a high-strength clinker preheating device. Background Technique

[0002] Cement is a powdery hydraulic inorganic binder. After being mixed with water and stirred, it becomes a slurry, which can harden in the air or better harden in water, and can firmly bond materials such as sand and stone together, with relatively high strength. The production line composed of a series of equipment for producing cement mainly consists of processes such as crushing and pre-homogenization, raw material preparation and homogenization, preheating and decomposition, firing of cement clinker, and cement grinding and packaging. And the calcination process is very important, which can determine the quality of cement and is widely used in civil engineering, water conservancy and other projects.

[0003] Most of the existing calcination devices need to put the crushed raw materials into the preheater for preheating treatment before calcination, and then put them into the inside of the kiln for calcination after preheating the raw materials, so as to improve the calcination efficiency. However, the existing clinker preheating devices generally heat the powder through the internal heating layer. The contact between the heating layer and the powder is not sufficient, the heating effect on the outside is better, but the internal heating is not sufficient, which affects the subsequent processing efficiency. After the existing clinker preheating device heats the powder, it is directly discharged through the discharge port. Since the powder discharges too fast, it is very easy to cause blockage of the discharge port. Therefore, a high-strength clinker preheating device is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-strength clinker preheating device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-strength clinker preheating device includes a housing. The top of the housing is fixedly connected with a top plate. The top of the top plate is provided with a feed inlet. The top of the feed inlet is fixedly connected with a feed pipe. The top of the feed pipe is fixedly connected with a feed hopper. The top of the top plate is fixedly connected with a motor located at the central position. The output end of the motor is fixedly connected with a rotating shaft penetrating the top plate. The outside of the rotating shaft is fixedly connected with an auger. The inside of the auger is provided with a heating inner tank. The bottom of the housing is fixedly connected with support legs.

[0007] Preferably, the inside of the housing is fixedly connected with a heating layer. The inside of the heating layer is fixedly connected with an inner shell. The bottom of the housing, the heating layer and the inner shell is provided with a discharge port. The bottom of the discharge port is fixedly connected with a discharge pipe. The inside of the inner shell is fixedly connected with stirring rods.

[0008] Preferably, the number of the stirring rods is several, and the stirring rods are all arranged between the interlayers of the auger.

[0009] Preferably, the feed inlet, the feed pipe and the feed hopper are in a group, and there are two groups in total, which are symmetrically arranged on the surface of the top plate.

[0010] Preferably, the number of the support legs is four, and they are symmetrically arranged on the surface of the outer shell.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, through the components such as the outer shell, the heating layer, the motor, the rotating shaft, the auger, the heating inner liner and the inner shell, the motor drives the rotating shaft to rotate, the rotating shaft drives the auger to rotate, the heating inner liner in the auger heats the auger, and under the action of the auger and the stirring rods, as the auger rotates, the powder spreads out flat on the auger, and the powder is heated by the heated auger. Used in combination with the heating layer, heating together makes the heating of the powder more sufficient, thus solving the problem that most existing calcination devices need to put the broken raw materials into a preheater for preheating treatment before calcination, and then put the preheated raw materials into the interior of a kiln for calcination to improve the calcination efficiency. However, the existing preheating devices for clinker generally heat the powder through the internal heating layer, and the contact between the heating layer and the powder is not sufficient enough, the heating effect on the outside is good, but the internal heating is not sufficient enough, which affects the subsequent processing efficiency.

[0013] 2. In the present utility model, through the components such as the auger, the discharge port and the discharge pipe, the huge auger drives the powder to be stably transported. The slope of the huge auger is more gentle than that of a normal auger, and the number of layers is also more, so the speed of material discharge is greatly slowed down, the residence time of the powder in the outer shell is longer, and the preheating effect can also be improved. At the same time, it avoids the blockage of the powder due to too fast material discharge, thus solving the problem that the existing preheating devices for clinker directly discharge the powder through the discharge port after heating, and because the powder discharges too fast, it is very easy to cause blockage of the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the top view sectional structure of the present utility model.

[0016] In the figure: 1. Outer shell; 2. Top plate; 3. Feed inlet; 4. Feed pipe; 5. Feed hopper; 6. Motor; 7. Rotating shaft; 8. Auger; 9. Heating inner liner; 10. Heating layer; 11. Inner shell; 12. Stirring rod; 13. Discharge port; 14. Discharge pipe; 15. Support leg. DETAILED DESCRIPTION OF THE INVENTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further declaration, the above terms have no special meaning, so they cannot be understood as limiting the protection scope of the present invention.

[0020] Please refer to Figure 1-2 , the present utility model provides a technical solution:

[0021] A high-strength clinker preheating device includes a housing 1. The top end of the housing 1 is fixedly connected with a top plate 2. The top end of the top plate 2 is provided with a feed inlet 3. The top end of the feed inlet 3 is fixedly connected with a feed pipe 4. The top end of the feed pipe 4 is fixedly connected with a feed hopper 5. The top end of the top plate 2 is fixedly connected with a motor 6 located at the central position. The output end of the motor 6 is fixedly connected with a rotating shaft 7 passing through the top plate 2. The outer side of the rotating shaft 7 is fixedly connected with an auger 8. The inside of the auger 8 is provided with a heating inner tank 9. The bottom end of the housing 1 is fixedly connected with support legs 15.

[0022] The inner side of the housing 1 is fixedly connected with a heating layer 10. The inner side of the heating layer 10 is fixedly connected with an inner housing 11. The bottom ends of the housing 1, the heating layer 10, and the inner housing 11 are provided with a discharge port 13. The bottom end of the discharge port 13 is fixedly connected with a discharge pipe 14. The inner side of the inner housing 11 is fixedly connected with stirring rods 12. The number of the stirring rods 12 is several, and the stirring rods 12 are all arranged between the interlayers of the auger 8. The feed inlet 3, the feed pipe 4, and the feed hopper 5 are a group, and there are two groups in total, and they are symmetrically arranged on the surface of the top plate 2. The number of the support legs 15 is four, and they are symmetrically arranged on the surface of the housing 1.

[0023] Workflow: When the high-strength clinker preheating device is needed, the whole device is controlled by external power supply. First, the raw material of cement powder is poured into the hopper 5. The raw material enters the interior of the inner shell 11 through the hopper 5, the feed pipe 4 and the feed port 3, and falls on the auger 8. The motor 6 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the auger 8 to rotate. The heating inner liner 9 in the auger 8 heats the auger 8. Under the action of the auger 8 and the stirring rod 12, as the auger 8 rotates, the powder spreads out flat on the auger 8. The heated auger 8 heats the powder, and it is used in combination with the heating layer 10 to heat together, making the heating of the powder more sufficient. The large auger 8 drives the powder to be stably transported. The slope of the large auger 8 is gentler than that of the normal auger 8, and the number of layers is also more. Therefore, the feeding speed is greatly reduced, the residence time of the powder in the outer shell 1 is longer, and the preheating effect can be improved to a certain extent. At the same time, it avoids the situation that the discharge pipe 14 is blocked due to too fast feeding of the powder. The powder that has been heated on the auger 8 will finally pass through the discharge port 13 and the discharge pipe 14 and be discharged from the outer shell 1.

[0024] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength clinker preheating device, comprising a housing (1), characterized in that: The top of the shell (1) is fixedly connected to a top plate (2), the top of the top plate (2) is provided with a feed port (3), the top of the feed port (3) is fixedly connected to a feed pipe (4), the top of the feed pipe (4) is fixedly connected to a feed hopper (5), the top of the top plate (2) is fixedly connected to a motor (6) located at a central position, the output end of the motor (6) is fixedly connected to a rotating shaft (7) passing through the top plate (2), the outer side of the rotating shaft (7) is fixedly connected to an auger (8), the interior of the auger (8) is provided with a heating liner (9), and the bottom end of the shell (1) is fixedly connected to a supporting leg (15).

2. A high-strength clinker preheating device according to claim 1, characterized in that: A heating layer (10) is fixedly connected to the inner side of the outer shell (1), an inner shell (11) is fixedly connected to the inner side of the heating layer (10), a discharge port (13) is provided at the bottom ends of the outer shell (1), the heating layer (10) and the inner shell (11), a discharge pipe (14) is fixedly connected to the bottom end of the discharge port (13), and a stirring rod (12) is fixedly connected to the inner side of the inner shell (11).

3. A high-strength clinker preheating device according to claim 2, characterized in that: The number of the stirring rods (12) is multiple, and the stirring rods (12) are all arranged between the interlayers of the auger (8).

4. A high-strength clinker preheating device according to claim 1, characterized in that: The feed port (3), the feed pipe (4) and the feed hopper (5) form a group, with two groups in total, and are symmetrically arranged on the surface of the top plate (2).

5. The high-strength clinker preheating device according to claim 1, characterized in that: The number of the supporting legs (15) is four, and they are symmetrically arranged on the surface of the housing (1).

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