CN214400681U

CN214400681U - Powder black steaming machine

Info

Publication number: CN214400681U
Application number: CN202120398775.4U
Authority: CN
Inventors: 王平华
Original assignee: Xiamen Lili Powder Metallurgy Co ltd
Current assignee: Xiamen Lili Powder Metallurgy Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-15
Anticipated expiration: 2031-02-23

Abstract

The application relates to a powder black steaming machine, which comprises a hollow furnace body, wherein a furnace cover is arranged at the upper end of the furnace body, an inner container is arranged on the upper side of the inner cavity of the furnace body, a guide cylinder for placing a workpiece is arranged in the inner container, and a heating assembly is arranged on the lower side of the inner cavity of the furnace body; the steam pipeline penetrates from the outer side of the furnace body and extends to the inner cavity of the furnace body, and one end of the steam pipeline, which extends to the inner cavity of the furnace body, is respectively connected with a first conveying pipe and a second conveying pipe; the first conveying pipe is connected with the inner container through the lower end of the inner container after being heated by the heating assembly, the second conveying pipe is tightly attached to the inner wall of the furnace body and extends upwards, the second conveying pipe is connected with the third conveying pipe, and the other end of the third conveying pipe penetrates through the side walls of the inner container and the guide cylinder and is connected into the inner container. This application has the effect that can utilize the heat of brickwork.

Description

Powder black steaming machine

Technical Field

The application relates to the technical field of heat treatment equipment, in particular to a powder black steaming machine.

Background

The powder black steaming machine is used for carrying out surface oxidation treatment on the sintered and formed powder metallurgy iron-based product and can also be used for carrying out surface blackening treatment on other mechanical parts. When the black steaming machine works, steam airflow is introduced from the outside and enters the inside of the black steaming machine to oxidize the surface of a workpiece.

At present, chinese patent with application publication number CN102605313A discloses a steam blackening furnace, which comprises a furnace cover, a furnace wall, a base and a steam conveying pipe, wherein a liner is arranged in the furnace chamber, a guide flow cylinder is arranged in the liner, a steam diffusion cavity is arranged at the lower end of the liner, a heating cavity is arranged below the liner, a plurality of heating columns are arranged in the heating cavity, and the middle section of the steam conveying pipe is coiled on the plurality of heating columns for a plurality of circles and then is connected into the steam diffusion cavity and is introduced into the guide flow cylinder to carry out oxidation treatment on a workpiece. Because the temperature of furnace wall is the highest generally when heating the heating chamber heating, the temperature can be higher in the furnace chamber that is close to the furnace wall, through above-mentioned technical scheme, can make the steam temperature who gets into the inner bag more be close to the temperature of furnace wall to make the thermal field in the furnace chamber more even, and then make the work piece blacken the quality better.

In view of the above-mentioned related art, the inventor believes that there is a defect that the heat of the furnace wall cannot be well utilized, resulting in waste of heat energy.

SUMMERY OF THE UTILITY MODEL

In order to utilize the heat of brickwork, this application provides a black machine is evaporated to powder.

The application provides a black machine is evaporated to powder adopts following technical scheme:

a powder black steaming machine comprises a hollow furnace body, a furnace cover is arranged at the upper end of the furnace body, an inner container is arranged on the upper side of the inner cavity of the furnace body, a guide cylinder for placing a workpiece is arranged in the inner container, and a heating assembly is arranged on the lower side of the inner cavity of the furnace body; the steam pipeline penetrates from the outer side of the furnace body and extends to the inner cavity of the furnace body, and one end of the steam pipeline, which extends to the inner cavity of the furnace body, is respectively connected with a first conveying pipe and a second conveying pipe; the first conveying pipe is connected with the inner container through the lower end of the inner container after being heated by the heating assembly, the second conveying pipe is tightly attached to the inner wall of the furnace body and extends upwards, the second conveying pipe is connected with the third conveying pipe, and the other end of the third conveying pipe penetrates through the side walls of the inner container and the guide cylinder and is connected into the inner container.

Through adopting above-mentioned technical scheme, form the shut behind the steam pipeline access furnace body inner chamber, steam in the first pipeline lets in the inner bag and lets in the draft tube after heating through heating element, because heating element can lead to the inner wall temperature of furnace body to become very high when heating, consequently steam in the second pipeline gets into the draft tube through the third conveyer pipe after the heating of furnace body inner wall, thereby utilized the heat of furnace body inner wall, and the third conveyer pipe can also play the supporting role to the draft tube by the lateral wall access draft tube of draft tube.

Preferably, three third conveying pipes are arranged at intervals along the length direction of the second conveying pipe.

Through adopting above-mentioned technical scheme, because the work piece generally is vertical placing, consequently through setting up three third conveyer pipe, can carry out oxidation treatment simultaneously to each position of work piece in the steam access draft tube for the blackening speed of work piece has promoted the blackening quality of work piece, and the effect that plays the support to the draft tube that three third conveyer pipe can be better.

Preferably, a sealing gasket is arranged at the joint of the third delivery pipe and the inner container.

By adopting the technical scheme, the sealing performance between the inner container and the inner cavity of the furnace body can be ensured by arranging the sealing gasket, and the steam is prevented from leaking out from the joint of the third conveying pipe and the inner container after being introduced into the inner container guide cylinder.

Preferably, an air pressure gauge for detecting the air pressure in the inner container is arranged on the furnace cover.

By adopting the technical scheme, in the oxidation treatment process of the workpiece, the workpiece needs to be put in or steam needs to be introduced according to different temperatures and pressures in the liner in due time, so that the pressure in the liner can be detected in time by arranging the barometer.

Preferably, heating element includes a plurality of heating posts and electric heating pipe, and is a plurality of the heating post interval sets up at furnace body inner chamber downside, the heating post surface is provided with electric heating pipe along length direction, first conveyer pipe is the hose, first conveyer pipe coils the back and inserts the inner bag on a plurality of heating posts.

Through adopting above-mentioned technical scheme, electric heating pipe has good heating efficiency, and it is fast to heat up to first conveyer pipe coils the back for many times on the heating post, and the steam heating distance of first conveyer pipe inside lengthens, and the temperature of steam is also higher, thereby makes the steam temperature who lets in the inner bag more be close with the temperature of furnace body, avoids leading to the work piece to blacken inhomogeneous because the inner bag temperature that is close to the furnace body inner wall is higher.

Preferably, a plurality of metal rods are connected between the inner wall of the furnace body and the heating column, and the other ends of the plurality of metal rods are abutted against the heating column at intervals along the length direction of the heating column.

Through adopting above-mentioned technical scheme, because first conveyer pipe coils many circles on the heating post, the length of first conveyer pipe must be good at the second conveyer pipe far away, consequently can be with the further conduction of heat of furnace body inner wall to the heating post through setting up a plurality of metal rods on to the heat of more efficient inner wall of furnace body utilizes.

Preferably, one end of the metal rod, which abuts against the heating column, is provided with a clamping block matched with the heating column, and the clamping block and the electric heating pipe are arranged on the heating column oppositely.

Through adopting above-mentioned technical scheme, can increase the area of contact of metal rod and heating post through setting up the grip block to make better the transmission of the heat of furnace body inner wall to the heating post on.

Preferably, a valve is arranged on the steam pipeline positioned outside the furnace body.

By adopting the technical scheme, in the oxidation treatment process of the workpiece, the workpiece needs to be put in or steam needs to be introduced according to different temperatures and pressures in the liner, so that the on-off of the steam can be controlled by arranging the valve.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) the steam pipeline is connected into the inner cavity of the furnace body to form a branch, the steam in the first conveying pipeline is heated by the heating assembly and then is introduced into the inner container and the guide cylinder, and the heating assembly can cause the temperature of the inner wall of the furnace body to be very high during heating, so that the steam in the second conveying pipeline is heated by the inner wall of the furnace body and then enters the guide cylinder through the third conveying pipeline, the heat of the inner wall of the furnace body is utilized, and the third conveying pipeline is connected into the guide cylinder from the side wall of the guide cylinder and can also play a supporting role in the guide cylinder;

(2) the first conveying pipe is coiled on the heating column for multiple times, and the length of the first conveying pipe is inevitably far longer than that of the second conveying pipe, so that the heat of the inner wall of the furnace body can be further transferred to the heating column by arranging the plurality of metal rods, and the heat of the inner wall of the furnace body can be more efficiently utilized;

(3) the contact area of the metal rod and the heating column can be increased by arranging the clamping block, so that the heat on the inner wall of the furnace body is better transferred to the heating column.

Drawings

FIG. 1 is a schematic overall structure diagram of a powder black steaming machine according to an embodiment of the present application;

FIG. 2 is a front cross-sectional view of a powder black steaming machine according to an embodiment of the present application;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a schematic structural diagram of a heating column according to an embodiment of the present application.

Description of reference numerals: 1. a furnace body; 2. a furnace cover; 3. an inner container; 4. a draft tube; 5. a flow guide cavity; 6. a wind wheel; 7. a motor; 8. a vapor diffusion cylinder; 9. a vapor diffusion hole; 10. a steam line; 11. a first delivery pipe; 12. a second delivery pipe; 13. a third delivery pipe; 14. sealing gaskets; 15. a barometer; 16. a valve; 17. heating the column; 18. an electric heating tube; 19. a metal rod; 20. and (4) clamping the block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses black machine is evaporated to powder. Referring to fig. 1 and 2, the powder black steaming machine comprises a hollow furnace body 1, a furnace cover 2 is arranged at an opening at the upper end of the furnace body 1, an inner container 3 is arranged in an inner cavity of the furnace body 1 below the furnace cover 2, and the upper end of the inner container 3 is fixed at the opening at the upper end of the furnace body 1. A guide shell 4 for placing a workpiece is arranged in the inner container 3, and a guide cavity 5 is formed between the outer wall of the guide shell 4 and the inner wall of the inner container 3. The inner cavity of the furnace body 1 above the guide shell 4 is provided with a wind wheel 6, and the wind wheel 6 is driven by a motor 7 arranged above the furnace cover 2. The lower end of the guide shell 4 is provided with a steam diffusion cylinder 8, and a plurality of steam diffusion holes 9 are vertically arranged on the steam diffusion cylinder 8 at intervals. The inner cavity of the furnace body 1 positioned below the inner container 3 is provided with a heating component.

Specifically, the both sides outside of furnace body 1 all is provided with steam conduit 10, and steam conduit 10 is worn to establish the lateral wall of furnace body 1 and is extended and get into furnace body 1 inner chamber by the bottom level of furnace body 1, and steam conduit 10 extends to the one end of furnace body 1 inner chamber and is connected with first conveyer pipe 11 and second conveyer pipe 12 respectively. First conveyer pipe 11 is inserted inner bag 3 by 3 lower extreme openings of inner bag after heating element heats, and 1 inner wall of furnace body and vertical upwards extension are hugged closely to second conveyer pipe 12, and second conveyer pipe 12 horizontally connect has third conveyer pipe 13, and the lateral wall that inner bag 3 and draft tube 4 were worn to establish by the other end of third conveyer pipe 13 inserts draft tube 4, and draft tube 4 passes through third conveyer pipe 13 butt inside inner bag 3.

The black quick-witted during operation is evaporated to powder, and heating element generates heat, and steam lets in from steam conduit 10, and the steam flow direction of a part is first conveyer pipe 11, and first conveyer pipe 11 lets in inner bag 3 after heating element direct heating, and the steam in the inner bag 3 gets into draft tube 4 through steam diffusion hole 9 and carries out oxidation treatment to the work piece.

The steam of the other part flows to the second conveying pipe 12, and because the temperature of the inner wall of the furnace body 1 is generally the highest when the heating assembly heats, the steam in the second conveying pipe 12 is fully heated by the inner wall of the furnace body 1, and then the steam flows to the guide cylinder 4 through the third conveying pipe 13 to carry out oxidation treatment on the workpiece, so that the high heat of the inner wall of the furnace body 1 is effectively utilized, and the waste of a large amount of heat energy is avoided.

All steam flowing into the guide shell 4 continuously rises in the guide shell 4, the steam is blown to the guide cavities 5 at the two ends of the guide shell 4 by the wind wheel 6 when passing through the opening at the upper end of the guide shell 4, and the steam flows to the steam diffusion holes 9 through the guide cavities 5, so that the reciprocating steam forms convection in the guide shell 4 and exchanges heat with the inner cavity of the furnace body 1 outside the inner container 3, and workpieces are better oxidized.

In this embodiment, the third conveyer pipe 13 is provided with three along the length direction interval of second conveyer pipe 12, and the steam of three third conveyer pipe 13 release can carry out oxidation treatment simultaneously to each position of work piece in draft tube 4 to accelerate the blackening speed of work piece, the work piece also can be more even by the oxidation, and three third conveyer pipe 13 way can be better play the effect of support to draft tube 4.

Referring to fig. 3, a gasket 14 is provided at the junction of the third duct 13 and the inner container 3. Through setting up seal gasket 14, can guarantee the leakproofness between inner bag 3 and the furnace body 1 inner chamber, avoid steam to leak, and influence the inside atmospheric pressure of inner bag 3, and then influence the blackening quality of work piece.

In this embodiment, the sealing gasket 14 is a flexible graphite gasket, the highest temperature in the furnace body 1 generally reaches about 555 ℃, and the flexible graphite gasket can still maintain good sealing performance at a high temperature of 600 ℃ to 1000 ℃, and in other embodiments, other high-temperature-resistant sealing gaskets 14 can also be adopted.

Referring to fig. 1, a gas pressure gauge 15 for detecting the gas pressure in the inner container 3 is provided on the furnace cover 2, and a valve 16 is provided on the steam pipe 10 located outside the furnace body 1. In the process of oxidizing the workpiece, the workpiece needs to be put in or steam needs to be introduced according to different temperatures and pressures in the inner container 3, so that the air pressure in the inner container 3 can be detected in time by arranging the air pressure gauge 15, and the on-off of the steam pipeline 10 can be controlled by the valve 16.

Referring to fig. 4, the heating assembly includes four heating columns 17 vertically fixed at intervals at the bottom of the inner cavity of the furnace body 1 and eight electric heating pipes 18 vertically fixed two by two at intervals at one side of the surfaces of the heating columns 17. The first conveying pipes 11 are flexible pipes, and the two first conveying pipes 11 are respectively coiled around the two adjacent heating columns 17 and the electric heating pipes 18 on the heating columns 17 and then are connected into the inner container 3 together.

As mentioned above, the temperature of the inner wall of the furnace body 1 is generally the highest, so the temperature of the liner 3 near the inner wall of the furnace body 1 is also higher. And electric heating pipe 18 has good heating efficiency, and the intensification is faster, and first conveyer pipe 11 winds many circles back on heating post 17, and the steam heating distance of first conveyer pipe 11 inside becomes long, and steam temperature is higher, and the temperature of the steam that lets in inner bag 3 more is close to the temperature of furnace body 1 inner wall, thereby makes the thermal field in the water conservancy diversion chamber 5 more even, avoids leading to the work piece to blacken inhomogeneously because the inner bag 3 temperature that is close to furnace body 1 inner wall is higher.

A plurality of metal rods 19 are horizontally connected between the inner wall of the furnace body 1 and the heating column 17 along the length direction of the heating column 17, one end of each metal rod 19 abutting against the heating column 17 is arranged opposite to the two electric heating pipes 18 on the heating column 17, and the first conveying pipe 11 winds on the heating column 17 for a plurality of circles through abutting against the metal rods 19 with corresponding heights.

Because the first conveying pipe 11 winds on the heating column 17 for a plurality of circles, the length of the first conveying pipe 11 is necessarily far longer than that of the second conveying pipe 12, more heat on the inner wall of the furnace body 1 can be transferred to the heating column 17 through the good heat conductivity of the metal rod 19, the first conveying pipe 11 can also be heated through the heat on the inner wall of the furnace body 1, and therefore the heat on the inner wall of the furnace body 1 can be utilized more efficiently.

One end of the metal rod 19, which is abutted against the heating column 17, is provided with a clamping block 20 matched with the heating column 17, the clamping block 20 is in a semicircular arc shape, and the first conveying pipe 11 is wound on the heating column 17 and abutted against the outer surface of the clamping block 20.

The contact area of the metal rod 19 and the heating column 17 can be increased by arranging the clamping block 20, so that the heat of the inner wall of the furnace body 1 is better transferred to the heating column 17, the area of the outer surface of the clamping block 20, which is directly abutted by the first conveying pipe 11, is also increased, and the first conveying pipe 11 can be better heated.

The implementation principle of the powder black steaming machine in the embodiment of the application is as follows: the steam pipeline 10 is connected with a first delivery pipe 11 and a second delivery pipe 12, the first delivery pipe 11 is heated by an electric heating pipe 18 and then is connected into the inner container 3, the second delivery pipe 12 is heated by the inner wall of the furnace body 1 and then is connected into the guide cylinder 4 by a third delivery pipe 13, so that high heat of the inner wall of the furnace body 1 is utilized, and the third delivery pipe 13 can also play a role in supporting the guide cylinder 4; be connected with a plurality of metal bars 19 between 1 inner wall of furnace body and the heating post 17, first conveyer pipe 11 winds many rings and contradicts on the grip block 20 lateral wall of metal bar 19 on the heating post 17, and metal bar 19 heats first conveyer pipe 11 on with the high heat transfer of 1 inner wall of furnace body to grip block 20 and heating post 17, and then the heat of 1 inner wall of furnace body has obtained more efficient utilization.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a black machine is evaporated to powder which characterized in that: the furnace comprises a hollow furnace body (1), a furnace cover (2) is arranged at the upper end of the furnace body (1), an inner container (3) is arranged on the upper side of an inner cavity of the furnace body (1), a guide cylinder (4) for placing a workpiece is arranged in the inner container (3), and a heating assembly is arranged on the lower side of the inner cavity of the furnace body (1);

the steam boiler is characterized by further comprising two steam pipelines (10) which are arranged on the outer sides of the two sides of the boiler body (1) respectively, wherein the steam pipelines (10) penetrate from the outer side of the boiler body (1) and extend to the inner cavity of the boiler body (1), and one ends of the steam pipelines (10) extending to the inner cavity of the boiler body (1) are connected with a first conveying pipe (11) and a second conveying pipe (12) respectively;

first conveyer pipe (11) are inserted inner bag (3) by inner bag (3) lower extreme after heating element heats, furnace body (1) inner wall and upwards extension are hugged closely in second conveyer pipe (12), second conveyer pipe (12) are connected with third conveyer pipe (13), the lateral wall of inner bag (3) and draft tube (4) is worn to establish simultaneously and inserts inner bag (3) to the other end of third conveyer pipe (13).

2. The powder black steaming machine according to claim 1, wherein: and three third conveying pipes (13) are arranged at intervals along the length direction of the second conveying pipe (12).

3. The powder black steaming machine according to claim 1, wherein: a sealing gasket (14) is arranged at the joint of the third delivery pipe (13) and the inner container (3).

4. The powder black steaming machine according to claim 1, wherein: and a barometer (15) for detecting the internal air pressure of the inner container (3) is arranged on the furnace cover (2).

5. The powder black steaming machine according to claim 1, wherein: heating element includes a plurality of heating post (17) and electric heating pipe (18), and is a plurality of heating post (17) interval sets up at furnace body (1) inner chamber downside, heating post (17) surface is provided with electric heating pipe (18) along length direction, first conveyer pipe (11) are the hose, first conveyer pipe (11) coil the back and insert inner bag (3) on a plurality of heating post (17).

6. The powder black steaming machine according to claim 5, wherein: a plurality of metal rods (19) are connected between the inner wall of the furnace body (1) and the heating column (17), and the other ends of the metal rods (19) are abutted to the heating column (17) at intervals along the length direction of the heating column (17).

7. The powder black steaming machine according to claim 6, wherein: one end of the metal rod (19) which is abutted against the heating column (17) is provided with a clamping block (20) matched with the heating column (17), and the clamping block (20) and the electric heating pipe (18) are oppositely arranged on the heating column (17).

8. The powder black steaming machine according to claim 1, wherein: a valve (16) is arranged on the steam pipeline (10) positioned at the outer side of the furnace body (1).