Pit type nitriding furnace

Abstract

The utility model relates to the technical field of nitriding furnaces, and discloses a pit type nitriding furnace which comprises a nitriding furnace assembly, a furnace cover assembly is arranged at the upper end of the nitriding furnace assembly, the furnace cover assembly comprises a furnace cover body and a high-speed circulating fan, and the high-speed circulating fan is fixedly connected to the middle of the upper surface of the furnace cover body. One side of the upper surface of the furnace cover body is fixedly connected with a gas outlet pipe, and the upper end of the gas outlet pipe is in threaded connection with a purification assembly. According to the pit type nitriding furnace, through the arrangement of the high-speed circulating fan and the purification assembly, the problems that when an existing pit type nitriding furnace is used, the temperature distribution uniformity in the furnace is poor, consequently, the nitriding quality of workpieces is uneven, gas flow control is not accurate enough, the sufficiency of nitriding reaction is affected, and certain limitation exists in use are solved; or when an existing pit type nitriding furnace is used, waste gas exhausted by a gas outlet pipe can pollute the working environment, the body health of related workers is affected, and certain limitation exists in use.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogenization furnace technical field, concretely is a well type nitrogenization furnace. BACKGROUND

[0002] Well type nitrogenization furnace is circular structure. The furnace body adopts senior refractory brick and is built into, reduces heat loss, saves energy. Well type nitrogenization furnace adopts senior heat -resisting steel fan, and is high temperature, long life. Well type nitrogenization furnace adopts electric heating mode, and heating chamber temperature, ammonia decomposition rate and other heat treatment parameters are all high precision instrument and sensor dynamic control, and precision is high, and parameter is stable. Well type nitrogenization furnace of Fengdong heat treatment adopts electric screw type elevator structure, adopts water cooling jacket and silicon rubber sealing device, ensures that the gas in the furnace does not leak, is safe and reliable. The nitrogenization furnace adopts the design mode of heating by area, and the furnace body is divided into two areas, and is heated. According to the above description, the applicant considers that the following problems exist:

[0003] At present, the existing well type nitrogenization furnace, when using, the temperature distribution uniformity in the furnace is poor, so that the nitriding quality of workpieces is uneven, the gas flow control is not accurate enough, the fullness of nitriding reaction is affected, and there is certain limitation in use. Or the existing well type nitrogenization furnace, when using, the exhaust gas discharged from the gas outlet pipe can pollute the working environment, affect the health of the relevant workers, and there is certain limitation in use, therefore, a well type nitrogenization furnace needs to be improved to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a well type nitrogenization furnace to solve the problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a well type nitrogenization furnace, comprising a nitrogenization furnace assembly, the nitrogenization furnace assembly is provided with a furnace cover assembly at the upper end, and the furnace cover assembly comprises a furnace cover body and a high-speed circulating fan, and the high-speed circulating fan is fastened and connected to the upper surface of the middle part of the furnace cover body, one side of the upper surface of the furnace cover body is fixedly connected with a gas outlet pipe, and the upper end of the gas outlet pipe is threadedly connected with a purification assembly.

[0006] Preferably, the purification assembly comprises a purifier and an anti-skid strip, and the anti-skid strip is fixedly connected to the circumferential surface of the purifier, and one end surface of the purifier is fixedly connected with a threaded part in the middle part.

[0007] Preferably, the upper surface of the two sides of the furnace cover body is fixedly connected with a U-shaped piece, and the upper surface of the U-shaped piece is fixedly connected with a second flange in the middle part, and one side of the upper surface of the furnace cover body is fixedly connected with an instrument panel.

[0008] Preferably, the nitriding furnace assembly comprises a nitriding furnace body and a supporting leg, and the supporting leg is fixedly connected to four corners of the bottom surface of the nitriding furnace body.

[0009] Preferably, the nitriding furnace assembly is fixedly connected with a lifting assembly at the upper portion, and the lifting assembly comprises a U-shaped fixing frame and an electric telescopic rod, and the electric telescopic rod is fixedly connected to the middle portion of the two ends of the bottom surface of the U-shaped fixing frame.

[0010] Preferably, the bottom surface of the electric telescopic rod is fixedly connected with a first flange, and the total number of the first flange and the electric telescopic rod is two.

[0011] Compared with the prior art, the well-type nitriding furnace has the following advantages

[0012] Beneficial effects:

[0013] 1. The well-type nitriding furnace has the advantages of improving the working efficiency of the nitriding furnace, solving the problem of poor uniformity of the temperature distribution in the furnace during use, leading to uneven nitriding quality of the workpiece, and not precise enough gas flow control, affecting the fullness of the nitriding reaction, and having certain limitations in use.

[0014] 2. The well-type nitriding furnace has the effect of purifying the generated waste gas, solving the problem of the exhaust gas discharged from the exhaust pipe polluting the working environment and affecting the health of the relevant workers during use, and having certain limitations in use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the lifting assembly structure of the present application;

[0018] Figure 3 It is a schematic diagram of the furnace cover assembly structure of the present application;

[0019] Figure 4 It is a schematic diagram of the nitriding furnace assembly structure of the present application.

[0020] In the figure: 1, nitriding furnace assembly; 11, nitriding furnace body; 12, foot; 13, gasket; 2, lifting assembly; 21, U-shaped fixing frame; 22, electric telescopic rod; 23, first flange; 3, furnace cover assembly; 31, furnace cover body; 32, gas outlet pipe; 33, high-speed circulating fan; 34, instrument panel; 35, U-shaped piece; 36, second flange; 4, purification assembly; 41, purifier; 42, non-slip strip; 43, threaded part. DETAILED DESCRIPTION

[0021] 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.

[0022] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0023] Embodiment:

[0024] Please refer to Figures 1-4 The present application provides a technical scheme: a well type nitriding furnace, comprising a nitriding furnace assembly 1, the upper end of the nitriding furnace assembly 1 is provided with a furnace cover assembly 3, and the furnace cover assembly 3 comprises a furnace cover body 31 and a high-speed circulating fan 33, and the high-speed circulating fan 33 is tightly connected to the middle part of the upper surface of the furnace cover body 31, one side of the upper surface of the furnace cover body 31 is fixedly connected with a gas outlet pipe 32, and the upper end of the gas outlet pipe 32 is threadedly connected with a purification assembly 4; the purification assembly 4 comprises a purifier 41 and a non-slip strip 42, and the non-slip strips 42 are uniformly fixedly connected to the circumferential surface of the purifier 41, and the threaded part 43 is fixedly connected to the middle part of the surface of one end of the purifier 41.

[0025] Working principle: when the well type nitriding furnace, in use, high-speed circulating fan 33 can make the gas in the body of the nitrogen furnace 11 rapid circulation flow, precise gas flow control system, ensure the stable supply of ammonia, make the nitriding reaction more sufficient, further improve the nitriding quality, ensure that the temperature and the concentration of gas in the body of the nitrogen furnace 11 are uniform, the exhaust pipe 32 is connected with the purification assembly 4, the purifier 41 in the purification assembly 4 will discharge after purification treatment, meet the environmental protection requirements, avoid the pollution of working environment, when the nitrogen furnace assembly 1 needs to be opened, only need to control the electric telescopic rod 22 to shorten through the external control end, and then drive the cover body 31 to rise, so as to realize the stable opening of the nitrogen furnace assembly 1, more convenient and practical, it is worth promoting.

[0026] As shown in Figure 3 , the upper surface of the cover body 31 is fixedly connected with a U-shaped piece 35 on both sides, and the upper surface of the U-shaped piece 35 is fixedly connected with a second flange 36 in the middle, and the upper surface of the cover body 31 is fixedly connected with an instrument panel 34 on one side; The nitrogen furnace assembly 1 comprises a nitrogen furnace body 11 and a supporting leg 12, and the supporting leg 12 is fixedly connected to the four corners of the bottom surface of the nitrogen furnace body 11, and the bottom surface of the supporting leg 12 is fixedly connected with a gasket 13; Specifically, the setting of the supporting leg 12 and the gasket 13 is helpful to stably support the nitrogen furnace body 11.

[0027] As shown in Figure 2 , the upper part of the nitrogen furnace assembly 1 is fixedly connected with a lifting assembly 2, and the lifting assembly 2 comprises a U-shaped fixed frame 21 and an electric telescopic rod 22, and the electric telescopic rod 22 is fixedly connected to the middle of the bottom surface of the U-shaped fixed frame 21 on both ends; The bottom surface of the electric telescopic rod 22 is fixedly connected with a first flange 23, and the total number of the first flange 23 and the electric telescopic rod 22 is two; Specifically, the first flange 23 is used to connect the lifting assembly 2 and the cover assembly 3 with the second flange 36.

[0028] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

Claims

1. A pit-type nitriding furnace characterized by comprising: Including nitriding furnace assembly (1), the upper end of nitriding furnace assembly (1) is provided with furnace cover assembly (3), and furnace cover assembly (3) includes furnace cover body (31) and high-speed circulating fan (33), and high-speed circulating fan (33) is fixedly connected on the upper surface middle part of furnace cover body (31), one side of the upper surface of furnace cover body (31) is fixedly connected with air outlet pipe (32), and the upper end of air outlet pipe (32) is threadedly connected with purification assembly (4).

2. A pit-type nitriding furnace according to claim 1, wherein The purification assembly (4) includes a purifier (41) and a non-slip strip (42), and the non-slip strip (42) is uniformly fixedly connected to the peripheral surface of the purifier (41), and the one end surface of the purifier (41) is fixedly connected with a threaded part (43).

3. A pit-type nitriding furnace according to claim 1, wherein The upper surface of the furnace cover body (31) is fixedly connected with a U-shaped member (35) on both sides, and the upper surface of the U-shaped member (35) is fixedly connected with a second flange (36), and the one side of the upper surface of the furnace cover body (31) is fixedly connected with an instrument panel (34).

4. A pit-type nitriding furnace according to claim 1, wherein The nitriding furnace assembly (1) includes a nitriding furnace body (11) and a foot (12), and the foot (12) is uniformly fixedly connected to the bottom surface of the four corners of the nitriding furnace body (11), and the bottom surface of the foot (12) is fixedly connected with a gasket (13).

5. A pit-type nitriding furnace according to claim 1, wherein The upper part of the nitriding furnace assembly (1) is fixedly connected with a lifting assembly (2), and the lifting assembly (2) includes a U-shaped fixing frame (21) and an electric telescopic rod (22), and the electric telescopic rod (22) is fixedly connected to the bottom surface of the U-shaped fixing frame (21) at both ends.

6. A pit-type nitriding furnace according to claim 5, wherein The bottom surface of the electric telescopic rod (22) is fixedly connected with a first flange (23), and the total number of the first flange (23) and the electric telescopic rod (22) is two.

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