Rapid cooling sintering furnace

Abstract

The utility model discloses a quick cooling sintering furnace, which relates to the technical field of powder metallurgy, and comprises a sintering furnace body and a blast assembly, a heating bin is arranged in the sintering furnace body, a support table is arranged on the inner wall of the bottom of the sintering furnace body, and the blast assembly for blast is arranged on the outer wall of the bottom of the sintering furnace body. Ventilation pipes are connected to the outer walls of the two sides of the air blower, and an air spraying opening is formed in the outer wall of the top of the annular pipeline. According to the rapid cooling sintering furnace, after machining is completed, an air blower sucks external air, the external air passes through a ventilation pipe and then is sprayed into the heating bin through an annular pipeline and an air spraying opening, and hot air is exhausted through an air outlet, so that the cooling speed of the interior of the heating bin is increased, and the sintering furnace body is cooled through a first cooling pipe; and the second cooling pipe is used for cooling the first cooling pipe, so that the situation that the cooling effect of the cooling liquid on the upper layer of the first cooling pipe from bottom to top is poor is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a fast cooling sintering furnace. Background Art

[0002] With the continuous development of the powder metallurgy field, sintering furnaces are more and more widely used in industrial production. After the product is sintered in a sintering furnace, the product in the furnace needs to be cooled, but it often takes a long time for the product to cool naturally. The faster the cooling speed, the higher the production efficiency and the higher the benefits.

[0003] Existing sintering furnaces usually cool down the sintered materials by blowing gas onto the high-temperature materials. However, this method is relatively simple. The airflow contacts the surface of the product, but has poor fluidity and a relatively slow cooling speed. In addition, the cooling effect may be greatly reduced when a large amount of material is transported.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a fast cooling sintering furnace is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a fast cooling sintering furnace to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fast cooling sintering furnace, comprising a sintering furnace body and a blast assembly, a heating chamber is provided inside the sintering furnace body, and a feed port is provided on the central top outer wall of the sintering furnace body, a support platform is provided on the bottom inner wall of the sintering furnace body, the blast assembly for blasting is provided on the bottom outer wall of the sintering furnace body, and the blast assembly comprises a blower, a ventilation pipe, an annular duct and an air jet, the outer walls on both sides of the blower are connected to ventilation pipes, and the ends of the ventilation pipes are connected to annular ducts, and the top outer wall of the annular duct is provided with an air jet.

[0007] Furthermore, a gas outlet is provided on the top outer wall of the sintering furnace body, and two gas outlets are provided.

[0008] Furthermore, the vertical center axis of the sintering furnace body is consistent with the vertical center axis of the blower, and the annular pipeline is in a circular ring shape.

[0009] Furthermore, the annular pipe and the air jets are both arranged inside the heating chamber, and eight air jets are arranged.

[0010] Furthermore, a first cooling component for cooling is arranged on the right side of the sintering furnace body, and the first cooling component includes a first cooling bin, a first liquid pump and a first liquid pumping pipe. The first liquid pump is arranged inside the first cooling bin, and the bottom end of the first liquid pump is connected to the first liquid pumping pipe.

[0011] Furthermore, the first cooling assembly also includes a first cooling pipe and a first circulation port. The first cooling pipe is arranged on the outer wall of the sintering furnace body, and the outer wall of the first cooling pipe is connected to the first circulation port, and the end of the first circulation port is connected to the first cooling bin.

[0012] Furthermore, a second cooling assembly for cooling is arranged on the left side of the sintering furnace body, and the second cooling assembly includes a second cooling bin, a second liquid pump and a second liquid pumping pipe. A second liquid pump is arranged inside the second cooling bin, and a second liquid pumping pipe is connected to the bottom end of the second liquid pump.

[0013] Furthermore, the second cooling assembly also includes a second cooling pipe and a second circulation port, the second cooling pipe is arranged on the outer wall of the first cooling pipe, and the outer wall of the second cooling pipe is connected to the second circulation port, and the end of the second circulation port is connected to the second cooling bin.

[0014] The utility model provides a fast cooling sintering furnace, which has the following beneficial effects:

[0015] 1. After the processing of the rapid cooling sintering furnace is completed, the blower is started. The blower draws external air through the ventilation pipe, and then sprays it into the interior of the heating chamber through the annular pipe and the jet nozzle, driving the hot gas circulation inside the heating chamber. The hot gas is discharged through the outlet. The annular pipe is ring-shaped. The annular pipe and the jet nozzle can increase the gas displacement, thereby accelerating the cooling speed inside the heating chamber.

[0016] 2. In the fast cooling sintering furnace, the coolant flows from the bottom of the first cooling tube to the top of the first cooling tube and re-enters the first cooling chamber through the first circulation port, so that the first cooling tube cools down the sintering furnace body, and the coolant is circulated. The coolant passes through the second cooling tube from top to bottom, and the second cooling tube cools down the first cooling tube, thereby preventing the occurrence of poor cooling effect of the coolant in the upper layer of the first cooling tube from bottom to top. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of a fast cooling sintering furnace of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a blast assembly of a fast cooling sintering furnace of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of an annular pipeline of a fast cooling sintering furnace of the utility model.

[0020] In the figure: 1. sintering furnace body; 2. heating chamber; 3. feed port; 4. support platform; 5. blast assembly; 501. blower; 502. ventilation pipe; 503. annular pipe; 504. jet nozzle; 6. air outlet; 7. first cooling assembly; 701. first cooling chamber; 702. first liquid extraction pump; 703. first liquid extraction pipe; 704. first cooling pipe; 705. first circulation port; 8. second cooling assembly; 801. second cooling chamber; 802. second liquid extraction pump; 803. second liquid extraction pipe; 804. second cooling pipe; 805. second circulation port. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1-Figure 3 As shown, a fast cooling sintering furnace comprises a sintering furnace body 1 and a blasting assembly 5, a heating chamber 2 is provided inside the sintering furnace body 1, a feeding port 3 is provided on the central top outer wall of the sintering furnace body 1, a supporting platform 4 is provided on the bottom inner wall of the sintering furnace body 1, and the blasting assembly 5 for blasting is arranged on the bottom outer wall of the sintering furnace body 1, and the blasting assembly 5 comprises a blower 501, a ventilation pipe 502, an annular pipeline 503 and an air jet 504, and the outer walls on both sides of the blower 501 are connected There is a ventilation pipe 502, and the end of the ventilation pipe 502 is connected to an annular pipe 503, the top outer wall of the annular pipe 503 is provided with an air jet 504, the top outer wall of the sintering furnace body 1 is provided with an air outlet 6, and there are two air outlets 6, the vertical center axis of the sintering furnace body 1 is consistent with the vertical center axis of the blower 501, the annular pipe 503 is annular, the annular pipe 503 and the air jet 504 are both arranged inside the heating chamber 2, and there are eight air jets 504;

[0023] The specific operation is as follows: the sintering furnace body 1 is placed on a horizontal ground, raw materials are fed into the heating chamber 2 through the feed port 3, the raw materials are placed on the top outer wall of the support table 4, and then the raw materials are processed by heating the inside of the heating chamber 2;

[0024] After the processing is completed, the blower 501 is started, and the blower 501 draws external air through the ventilation pipe 502, and then sprays it into the interior of the heating chamber 2 through the annular pipe 503 and the jet port 504, driving the hot gas inside the heating chamber 2 to circulate, and the hot gas is discharged through the gas outlet 6. The annular pipe 503 is annular, and the annular pipe 503 and the jet port 504 can increase the gas displacement, thereby accelerating the cooling speed inside the heating chamber 2;

[0025] like Figure 1-Figure 3 As shown, a first cooling assembly 7 for cooling is provided on the right side of the sintering furnace body 1, and the first cooling assembly 7 includes a first cooling bin 701, a first liquid pump 702 and a first liquid pumping pipe 703. The first cooling bin 701 is provided with the first liquid pump 702 inside, and the bottom end of the first liquid pump 702 is connected to the first liquid pumping pipe 703. The first cooling assembly 7 also includes a first cooling pipe 704 and a first circulation port 705. The first cooling pipe 704 is provided on the outer wall of the sintering furnace body 1, and the outer wall of the first cooling pipe 704 is connected to the first circulation port 705, and the end of the first circulation port 705 is connected to the first cooling bin 701. A second cooling assembly 8 for cooling is provided on the left side of the sintering furnace body 1, and the second cooling assembly 8 includes a second cooling bin 801, a second liquid pump 802, and a second liquid pumping pipe 803. The second liquid pump 802 is provided inside the second cooling bin 801, and the bottom end of the second liquid pump 802 is connected to the second liquid pumping pipe 803. The second cooling assembly 8 also includes a second cooling pipe 804 and a second circulation port 805. The second cooling pipe 804 is provided on the outer wall of the first cooling pipe 704, and the outer wall of the second cooling pipe 804 is connected to the second circulation port 805, and the end of the second circulation port 805 is connected to the second cooling bin 801;

[0026] The specific operation is as follows: the first cooling bin 701 and the second cooling bin 801 are both provided with cooling liquid, the first liquid pump 702 is started, the first liquid pump 702 pumps the cooling liquid in the first cooling bin 701, the cooling liquid enters the first cooling tube 704 through the first liquid pumping pipe 703, the cooling liquid flows from the bottom of the first cooling tube 704 to the top of the first cooling tube 704, and re-enters the first cooling bin 701 through the first circulation port 705, so that the first cooling tube 704 cools down the sintering furnace body 1, and the cooling liquid is circulated;

[0027] Start the second liquid pump 802, which pumps the coolant in the second cooling bin 801. The coolant enters the second cooling tube 804 through the second liquid pumping pipe 803. The coolant passes through the second cooling tube 804 from top to bottom and re-enters the second cooling bin 801 through the second circulation port 805, so that the second cooling tube 804 cools down the first cooling tube 704, thereby preventing the coolant in the upper layer of the first cooling tube 704 from cooling poorly from bottom to top.

[0028] In summary, if Figure 1-Figure 3As shown, when the fast cooling sintering furnace is used, the sintering furnace body 1 is first placed on a horizontal ground, and raw materials are fed into the heating chamber 2 through the feed port 3, and the raw materials are placed on the top outer wall of the support platform 4. Then, the raw materials are processed by heating the inside of the heating chamber 2. After the processing is completed, the blower 501 is started, and the blower 501 draws external air through the ventilation pipe 502, and then sprays it into the heating chamber 2 through the annular pipe 503 and the air jet 504, driving the hot gas inside the heating chamber 2 to circulate, and the hot gas is discharged through the air outlet 6, so as to accelerate the cooling speed inside the heating chamber 2;

[0029] Cooling liquid is provided inside the first cooling bin 701 and the second cooling bin 801. The first liquid pump 702 is started, and the first liquid pump 702 pumps the cooling liquid inside the first cooling bin 701. The cooling liquid enters the first cooling tube 704 through the first liquid pumping pipe 703. The cooling liquid flows from the bottom of the first cooling tube 704 to the top of the first cooling tube 704 and re-enters the first cooling bin 701 through the first circulation port 705, so that the first cooling tube 704 cools down the sintering furnace body 1. The second liquid pump 802 is started, and the second liquid pump 802 pumps the cooling liquid inside the second cooling bin 801. The cooling liquid enters the second cooling tube 804 through the second liquid pumping pipe 803. The cooling liquid passes through the second cooling tube 804 from top to bottom and re-enters the second cooling bin 801 through the second circulation port 805, so that the second cooling tube 804 cools down the first cooling tube 704.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A fast cooling sintering furnace, comprising a sintering furnace body (1) and a blast assembly (5), characterized in that: A heating chamber (2) is provided inside the sintering furnace body (1), and a feeding port (3) is provided on the central top outer wall of the sintering furnace body (1); a support platform (4) is provided on the bottom inner wall of the sintering furnace body (1); the blast assembly (5) for blowing air is arranged on the bottom outer wall of the sintering furnace body (1), and the blast assembly (5) comprises a blower (501), a ventilation pipe (502), an annular duct (503) and an air jet (504); the outer walls on both sides of the blower (501) are connected to the ventilation pipe (502), and the end of the ventilation pipe (502) is connected to the annular duct (503); and the top outer wall of the annular duct (503) is provided with an air jet (504).

2. A rapid cooling sintering furnace according to claim 1, characterized in that: The top outer wall of the sintering furnace body (1) is provided with a gas outlet (6), and two gas outlets (6) are provided.

3. A rapid cooling sintering furnace according to claim 1, characterized in that: The vertical center axis of the sintering furnace body (1) is consistent with the vertical center axis of the blower (501), and the annular pipeline (503) is in a circular ring shape.

4. A rapid cooling sintering furnace according to claim 1, characterized in that: The annular pipe (503) and the air jets (504) are both arranged inside the heating chamber (2), and there are eight air jets (504).

5. A rapid cooling sintering furnace according to claim 1, characterized in that: A first cooling component (7) for cooling is arranged on the right side of the sintering furnace body (1), and the first cooling component (7) includes a first cooling bin (701), a first liquid pump (702) and a first liquid pipe (703). The first cooling bin (701) is provided with a first liquid pump (702) inside, and the bottom end of the first liquid pump (702) is connected to the first liquid pipe (703).

6. A rapid cooling sintering furnace according to claim 5, characterized in that: The first cooling assembly (7) also includes a first cooling pipe (704) and a first circulation port (705), wherein the first cooling pipe (704) is arranged on the outer wall of the sintering furnace body (1), and the outer wall of the first cooling pipe (704) is connected to the first circulation port (705), and the end of the first circulation port (705) is connected to the first cooling bin (701).

7. A rapid cooling sintering furnace according to claim 1, characterized in that: A second cooling component (8) for cooling is arranged on the left side of the sintering furnace body (1), and the second cooling component (8) includes a second cooling bin (801), a second liquid pump (802) and a second liquid pipe (803). The second cooling bin (801) is provided with a second liquid pump (802), and the bottom end of the second liquid pump (802) is connected to the second liquid pipe (803).

8. A rapid cooling sintering furnace according to claim 7, characterized in that: The second cooling component (8) also includes a second cooling pipe (804) and a second circulation port (805), wherein the second cooling pipe (804) is arranged on the outer wall of the first cooling pipe (704), and the outer wall of the second cooling pipe (804) is connected to the second circulation port (805), and the end of the second circulation port (805) is connected to the second cooling bin (801).

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