JP2001304762A - Rotary heat-treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a pyrolytic gas and the like in a treatment equipment from leaking out of a heating cylinder body, and hinder the outside air from intruding into the equipment by preventing a sealing member provided on the sliding surface of the heating cylinder body from being deformed on one side in expansion-contraction deformation caused by thermal expansion in a rotary- kiln treatment equipment. SOLUTION: A heating cylindrical body 1 is laterally rotatably placed in a heating furnace H to provide a heat treatment part C. The body 1 is supported rotatably by a plurality of receiving rollers R provided on both side ends of the furnace. Sealing members 5 composed of gland packing are hermetically sealed slidably between the cylinder body 1 and a box body 7 of a supply device B and a discharge device D jointed on both ends of the cylindrical body 1. A bearing body 10 is installed to the joint opening, and support rollers 6 are provided thereto. The box body 7 is mounted on the cylindrical body 1 by means of the rollers 6 on the heating cylindrical body 1 to be brought into dynamic engagement capable of displacement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for drying an object to be treated comprising industrial waste, general waste and other substances by drying,
It relates to a heat treatment apparatus that performs carbonization, thermal decomposition, and other treatments, and in particular, a heating cylinder to which an object to be treated is supplied and subjected to heat treatment, and an object to be treated located at both ends of the heating cylinder. The present invention relates to a rotary heat treatment apparatus having an improved sealing structure for slidably sealing a housing connected to a supply device and a discharge device.

[0002]

2. Description of the Related Art As a method of treating industrial waste, general waste, and various other wastes which have been widely adopted in the past, flammable waste is incinerated in an incinerator to obtain non-combustible waste. Waste has been disposed of by landfill. However, relying on conventional methods for processing large amounts of industrial waste and household waste from mass production and mass consumption of products in recent years has limited the incinerator installation sites and landfill sites. And the development of a variety of new materials and the use of products made with the new materials in large quantities, and the disposal of these large amounts of waste by conventional treatment methods. Pollution has become a major social problem.

[0003] Therefore, a method for safely treating a large amount of waste as described above and a method for recycling and using the waste as a resource have been required. As a result, these large amounts of various wastes have been required. Various methods have been devised for the processing method and processing equipment. Among them, various technologies for carbonizing high-temperature organic waste and detoxifying it at high temperatures Development is taking place. The conventional treatment method for carbonizing these organic wastes is roughly divided from the structure of the carbonizing apparatus used and introduced into the processing apparatus as described in JP-A-57-96084. A method of directly heating a treated object in a heating furnace to treat the object;
As described in Japanese Patent Application Laid-Open No. 880 and JP-A-11-226545, there are two methods, that is, a method of indirectly heating and processing an object to be processed in a heating cylinder of a processing apparatus from outside the cylinder. .

In the former direct heating method, it is necessary to control so as to satisfy various conditions for maintaining the inside of the processing furnace at a high temperature and an optimum reducing atmosphere, and equipment and operating conditions are complicated. For this reason, the latter indirect heating method, in which a high-temperature reducing atmosphere can be easily maintained, is generally employed. Regarding the latter indirect heating method, a method of indirectly heating an object to be treated in a heating cylinder to perform a carbonization treatment or the like, as described in JP-A-9-67580, discloses a method in which a screw is inserted into a heating cylinder. And a screw conveyor system in which the object to be processed is agitated and transferred by the rotation of the screw, and by directly rotating the heated cylindrical body as described in JP-A-6-122879 as a conventional example. 2. Description of the Related Art A rotary kiln system for stirring and transferring a processed material is known.

[0005] Regarding the above-mentioned indirect heating apparatus, the former using the screw conveyor apparatus can reduce the size of the apparatus and easily seal the rotating part, but increases the throughput of waste. However, simply increasing the diameter of the heating cylinder or increasing the length of the heating cylinder causes various problems, so that a plurality of heating cylinders are stacked and connected in a multistage manner, and the rotation drive mechanism is slightly complicated. I have to be. On the other hand, the latter rotary kiln device is suitable for treating a large amount of waste, but various conditions are required to seal the rotating part, and it is difficult to reduce the size. There are limits, each with its strengths and weaknesses.

[0006] Under such circumstances, various types of waste such as general household waste and industrial waste, or various types of materials to be treated such as sewage treatment and other sludge, incineration plants and other incineration ash are currently being heated. As shown in FIG. 1, heating cylinders C and D using a screw conveyor device or a rotary kiln device are generally widely used.
In the heat treatment apparatus composed of the above, the above-mentioned various objects to be processed are put into the raw material supply hopper A, and the cylindrical portions C and C are heated in the heating section H including the hot air generating furnace J and the like.
The object to be processed is dried, carbonized, decomposed, detoxified, and supplied to the storage tank G while being supplied into D and heated and transferred.

However, in order to perform a safe processing operation in such a heat treatment apparatus, it is necessary to prevent the decomposition gas generated during the heat treatment of the various objects to be processed from leaking out of the apparatus. At the same time, it is necessary to strictly prevent the atmosphere outside the apparatus from entering the furnace. Because, if various decomposed gases, etc., generated from the processed materials such as wastes leak out of the processing equipment, the environment inside or around the facility will be polluted by harmful components and odors contained in the decomposed gas. However, if the air enters the apparatus, the atmospheric conditions in the furnace change, so that heat treatment such as thermal decomposition and carbonization cannot be performed in a stable state. The original purpose cannot be achieved.

Therefore, in order to stably heat an object to be treated such as waste, an apparatus for completely and completely shutting off the heat treatment furnace from the outside to perform safe, durable and highly airtight treatment. In the conventional heat treatment apparatus as shown in FIG. 1, the sealing between the heating cylindrical portions C and E and the heating portion H and the supply and discharge devices B and D of the object to be processed is performed. Various packings K have been used. Among them, the one generally used is a cord-like sealing member 25 such as a gland packing wound in a multilayer shape and sealed as shown in FIG. By sealing the sealing member with a multi-layered structure, it is possible to secure a long sealed path and improve airtightness, and it is easy to replace the sealed sealing member. This is because it has certain advantages.

In the conventional general heat treatment apparatus as shown in FIG. 1, the first heat treatment section in the former stage is, as shown in FIG. A supply device B connected to the raw material supply hopper via a flexible member b is provided at the left end of the cylinder 1, and a heat-treated product is transferred to the next heat treatment section at the right end of the cylindrical body 1. Supply device D
Are slidably connected in a sealed state via packings, respectively, and the supply device D is connected to a subsequent heat treatment section via a flexible member d. The cylindrical body 1 is provided in the heating furnace H so as to be capable of being heated from the outside, and both ends are rotatably supported by rollers R outside the furnace and are rotated by a driving device M via a chain or the like. It is configured as follows.

[0010] As shown in FIG. 7, the structure of the closed portion of the cylindrical body 1 having the above-described structure is such that the left end 21
a is fitted into the opening 27a of the lower housing 27 of the supply device B, and a string is formed between the cylindrical holding member 22 and the annular holding portion 22 formed by projecting in a flange shape at the edge of the opening. The gland packing 25 is provided by being wound a plurality of times, and an annular or semi-annular fastener 23 for pressing the packing 25 so as not to be loosened is fixed to the flange portion 22a of the holding portion with a bolt 24. The sliding surface of the fitting portion is sealed, and the portion where the right end of the cylindrical body 21 is connected to the discharging device D is similarly sealed by winding a string-shaped gland packing 25. .

However, in a rotary kiln type heat treatment apparatus in which the heating cylinder is rotatably provided as described above, the cylinder 21 of the heating section is usually formed of a metal tube. When the body is heated to a high temperature, thermal expansion occurs in the axial direction and the diametric direction. Since it is very difficult to configure the cylindrical body 21 to expand uniformly in the axial direction and the diametrical direction, it is known that there is a fact that the cylindrical body is easily distorted.

In such a conventional heat treatment apparatus, the supply device B and the discharge device D joined to the heating cylinder 21 are supported on the heating cylinder 21 so as to ride on the heating cylinder 21. Therefore, as shown in FIG. 2B, since the cylindrical body 2 is fixed to the machine frame P by the holding body T,
1 can easily expand in the axial direction when trying to thermally expand, but since it is difficult to expand uniformly in the radial direction, a large pressure is applied to the upper side of the gland packing 25, The upper portion of the packing causes uneven wear, which causes a reduction in sealing performance and durability. Therefore, if such a rotary kiln-type heat treatment apparatus is continuously operated, the heating cylinder 21 is distorted and rotates in an eccentric state. It is impossible to seal the rotary support surface in a completely air-tight state by simply sealing the rotary support surface only with a normal oil seal. Therefore, the object to be processed is continuously heated in such a heated cylindrical body 21. There is a danger that the atmosphere will enter during the process and cause a gas explosion.

Therefore, in order to prevent such a gas explosion and a change in the processing atmosphere in the heating furnace, various sealing means have been invented to prevent gas from leaking into and out of the furnace. Various proposals have been made to increase the sealing effect by dynamically sealing the rotary sealing portion of the heated cylindrical body in a general rotary kiln without being limited to the heat treatment apparatus. For example, in Japanese Unexamined Patent Publication No. Hei 5-196363, as shown in FIG. 8, an envelope (connecting body of supply and discharge device) 32 is provided at an end of a furnace core tube (heating cylinder) 31 of a rotary kiln. In a rotary kiln device in which the space between the envelope and the rotating furnace core tube is kept airtight, an inner hole of a flange portion 33 provided to be loosely fitted on the outer periphery of the furnace core tube 31. A first seal made of an O-ring between the flange 33a and the outer peripheral surface of the furnace core tube 31 so that the furnace core tube allows axial displacement and inclination of the axis of the furnace core tube with respect to the flange portion. A member 34 is provided, and between the connecting portion 35 of the envelope provided so as to oppose both surfaces of the flange 33, an annular shape is provided so as to allow eccentric rotation of the flange 33 with respect to the envelope. There has been proposed an apparatus for providing a second seal member 36 made of an elastic body and sealing the same.

However, in the case where a dynamic flange member is interposed in the sealed portion as described above, different portions of the inner peripheral surface and both side surfaces of the flange member are sealed by the seal member. It is difficult to ensure a sufficient sealing surface (leak path). That is, since the leak path of the flange portion has two sealed portions on both sides, it is possible to sufficiently seal this portion, but since the inner peripheral surface of the flange portion is limited, Even if it is attempted to maintain the sealing effect by making the configuration of the seal portion dynamic, only the sealing points are dispersed, so there is a limit to maintaining the sealing effect, and the configuration is satisfactory despite the complexity of the configuration. No effect can be expected.

Similarly, Japanese Patent Application Laid-Open No. 8-145569 discloses, as shown in FIG. 9, an end portion of an externally heated rotating tube (heating cylinder) 41 provided in a heating furnace and the end of the tube. A band-shaped packing 43 in which a stainless steel wire is folded into asbestos is wound around a sliding rail 44 on the tube body between fixed ends (connecting ends of the supply and discharge devices) 42 provided at both ends to double the sliding member. The tube body 41 is arranged by a spring 45 which is arranged and supports the packing 43 on a spring shaft 44 provided at the fixed end 42.
There has been proposed a sealing device in which the sliding portion is sealed by pressing the sealing member.

As described above, when the sealing effect is maintained by elastically supporting the sealing member on the sliding sealing portion so as to follow the thermal deformation of the rotating cylinder (drum), the lower portion of the rotating drum is rotated by the rotating roller. Because it is supported,
Since the deformation of the rotating drum tends to appear on the upper side in the vertical direction, the double-arranged sliding member will appear as uneven wear on the upper seal part, and such a structure There is a limit to maintaining the sealing effect by making the member dynamic, and a satisfactory effect cannot be obtained.

In Japanese Utility Model Publication No. 59-5826,
As shown in FIG. 10, a seal ring 53 fixed to the outside of an annular support plate 52 integrally provided so as to protrude in the radial direction at an end of a rotary kiln body (heating cylindrical body) 51,
Seal ring 5 provided to be in sliding contact with the seal ring
4 is fixed to a holding cylinder 55 surrounding an end of the kiln body, and the holding cylinder is movably moved in the axial direction of the kiln body 51 via a link mechanism 56 via a fixed hood (a connecting portion of a supply / discharge device). A sealing device provided with an annular seal member 58 slidably in contact with the outer peripheral surface of the holding cylinder 55 and a spring member 59 for urging the holding cylinder 55 in a direction approaching the support plate 52 while being supported by the fixed hood. Has been proposed.

However, in the sealing device constructed as described above, the holding cylinder is supported by a plurality of link mechanisms connected by pins in a plane perpendicular to the rotating cylinder, so that the rotating cylinder is small in the axial direction. It is configured to be dynamically supported so that it can move smoothly by force.
As in the device described in Japanese Patent Application Publication No. 3 (1993), only the sealing points are dispersed, and there is a limit in maintaining the sealing effect.

Therefore, in any of the above-mentioned inventions, it is considered that the heating cylinder can be expanded and contracted smoothly in the axial direction when it is thermally expanded and deformed. There is still an insufficiency, and it is necessary to provide a sealing means so that the pressure distribution on the sealing gasket is constant and the entire circumference of the packing surface is uniformly worn. In addition, it is possible to efficiently heat-treat a large amount of objects to be processed, and to reduce the size of the processing apparatus as much as possible. It is desired to develop a heat treatment apparatus capable of easily performing carbonization treatment and other decomposition treatments without any heat treatment.

[0020]

An object of the present invention is to provide a heating cylinder in a heating furnace with an object to be treated consisting of waste and other substances and rotating the cylinder while rotating the cylinder outside. In a rotary kiln-type heat treatment apparatus that performs heat treatment by heating from above, while preventing decomposition gas and the like generated when the object to be treated is heat-treated in the heating cylinder, leaks to the outside of the heating cylinder. Completely shut off the space between the rotating heating cylinder and the outside so as to prevent the atmosphere outside the processing apparatus from entering the furnace, etc. An object of the present invention is to provide a heat treatment apparatus capable of safely performing a treatment such as carbonization.

[0021]

Means for Solving the Problems An externally heated rotary heating cylindrical body for performing heat treatment while transferring an object to be processed is provided laterally in a heating furnace with both ends protruding outside the furnace and rotatably supported. An end of the cylindrical body is fitted with a housing of a device for supplying the object to be processed, and the other end is fitted with a housing of a device for discharging the object to be processed. A rotary heating apparatus for heating the object is constituted, and the heating cylinder is rotatably supported by a plurality of receiving rollers provided at both ends outside the heating furnace, and the heating cylinder is provided at both ends thereof. The housing is slidably sealed via a seal member between each of the connected housings, and the housing is dynamically engaged with the heated cylindrical body via a support roller provided on a support of the connection opening. So that it can be displaced and supported so that it can be heated. Forming the the rotary heating apparatus.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the invention of the present application is a device B for supplying a raw material connected to a raw material hopper at both ends via a flexible member b, and a device D for discharging an object to be processed. Is provided in the heating furnace H, and the cylindrical body 1 is formed so as to be heated and rotated from the outside, and the cylindrical body 1 is formed.
A slidable connection via a packing K to a connection portion between the heating device and the supply device B and the discharge device D constitutes a heat treatment device.

In the heat treatment apparatus constructed as described above, both ends of the heating cylinder 1 are supported by rollers R, and are rotatably formed by a driving device M via a chain or the like. The supply device B and the discharge device D are formed on the cylindrical body 1 in a dynamic engagement by a support roller 6, and the supply device B and the discharge device D are variably held by a machine frame P by a roller S. Further, the end 1a of the cylindrical body 1 is fitted into the housing opening 7a at the lower portion of the supply device 7, and a sealing member made of a string-shaped gland packing 5 or the like is provided on the entire peripheral surface of the end 1a. The gland packing 5 is formed so as to be slidable in a sealed state between the cylindrical body 1 and the housing 7 in a sealed state, and the gland packing 5 is formed by a ring-shaped holding portion 2 and a ring-shaped fastener 3 formed in a flange shape at the opening. To fix the packing 5 The heating cylinder 1 to allow smooth thermal expansion deformation in the axial direction and the diameter direction as well as to avoid, configured as shown in FIG.

In the heat treatment apparatus composed of a rotary heating drum (rotary kiln) configured as described above and rotatably provided with the heating cylinder 1 in the heating furnace H, various wastes,
Sludge, incineration ash, fly ash, contaminated soil, construction waste, various shredder dust, oily metal scrap, etc. are put into hopper A, and the object to be processed is supplied from supply device B through supply plate 8 to heating cylindrical portion C. Is heated from the outside by hot air from a hot-air generating furnace J to perform drying and carbonization while stirring and transporting the waste inside by rotating the cylindrical body. The object to be processed which has been subjected to the primary treatment in the heating cylinder 1 is discharged and supplied to the heating cylinder 1 of the next heating cylinder portion E connected via a flexible member d via a supply device D.
A secondary heating process is performed by supplying the heated cylindrical body from the outside and heating the heated cylindrical body from the outside, and the completely carbonized workpiece is cooled by the discharging device F and discharged to the storage tank G.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat treatment apparatus according to the present invention will be described below with reference to the drawings based on an optimum embodiment. The invention of the present application provides a conventional heat treatment apparatus comprising an externally heated rotary drum having a structure as shown in FIG. d
As shown in FIG. 2 (a), a rotating drum connected to form a heat treatment section C is rotatably supported by a receiving roller R, and is supported on a heating cylindrical body 1 of the drum.
As shown in FIG. 3, the supply device B and the discharge device D are held on the machine frame P by a roller S so as to be able to move up and down.
Lower connecting portion 7a of heating cylinder 1 and supply device B for processing object
Are connected so as to prevent a slidably provided seal member 5 from being deformed into a biased state.

The structure of the hermetically connected portion between the heating cylinder 1 and the supply section B and discharge section D of the object to be processed in the present invention is as follows.
As shown in FIG. 3, the spiral piece 1 forming a transfer groove on the inner surface
b, the end 1a of the heating cylinder 1 is fitted and connected in a fitting portion 7a opened to the lower housing 7 of the supply section B, and a string is attached to the peripheral surface near the end of the heating cylinder 1. A plurality of tightly wound gland packings 5 are formed, and a slidable seal is formed between the packing 5 and a flange 2 formed by projecting the opening 5 from the periphery of the opening of the fitting portion 7a. The annular fastener 3 pressed so that the packing 5 does not come off is fixed to the flange portion 2a of the flange portion 2 by a bolt 4 so as to be detachable.

Embodiment 1 FIG. In the heat treatment apparatus configured as described above, as shown in FIGS. 3 and 6, the heating cylindrical body 1 includes a plurality of receiving rollers R provided at lower portions on both ends outside the furnace.
And is rotatably driven by a driving device M. Further, the supply device B and the discharge device D are dynamically placed on the rotary heating cylinder 1 via a support roller 6 provided on an engagement support member U provided in connection with the lower housing 7 thereof. It is variably supported by the engagement. And, the engagement support member U
Is a supporting member 10 connected to the lower housing 7 of the supply device B.
A support roller 6 is provided at the tip of
The fixing member 9 is rotatably fixed on the heating cylindrical body 1 through a fixing member 9. The fixing member 9 is supported by a bolt 9 c with a packing 9 b and a fixing plate 9 a therebetween.
It is stuck to.

The rotary heat treatment apparatus according to the present invention thus constructed is provided between the heating cylinder 1 forming the rotary heating drum and the housing 7 of the supply section B and the discharge section D connected to both ends thereof. Is slidably sealed by the gland packing 5, and when the heating cylinder 1 made of a metal tube thermally expands, the expansion in the axial direction is the same as in the conventional case. The contact surface can be smoothly extended so as to slide smoothly. In the expansion in the radial direction, the rotating cylinder receives a load from above, and the load is received and dispersed not only in the packing 5 but also in the support roller 6 and, along with the expansion in the radial direction. Thus, the housing 7 can be smoothly followed and fluctuated by the holding roller S, so that an unreasonable force is applied to the packing 5 as in the related art.

Embodiment 2 FIG. As shown in FIG. 6, at the tip of the support member 10 of the engagement support member U connected to the lower housing 7 of the supply device B and the discharge device D formed in the same manner as in the first embodiment.
As shown in (a), two support rollers 6 are provided, and the rollers 6 variably support the housing 7 by dynamic engagement in which the rollers 6 are in contact with each other so as to straddle the heating cylinder 1. To be configured. In the heat treatment apparatus thus configured, the supply section B and the discharge section D are supported at two points by the two support rollers 6, so that the heating cylinder forming the rotary heating drum When the body 1 thermally expands, it can expand more smoothly in the axial direction and the radial direction than in the first embodiment, and the load applied to the gland packing 5 can be made closer to a more uniform state.

Embodiment 3 FIG. Example 1 and Example 2 described above
Similarly, the supply device B and the discharge device D connected to the rotating cylinder 1 are dynamically placed on the heating cylinder 1 via the support roller 6 provided on the engaging support member U connected to the lower housing 7. In the heat treatment apparatus configured to be movably supported by engagement, the engagement support member U is connected to the lower housing 7 of the supply section B and the discharge section D as shown in FIG. The supporting roller 6 is fixed to the distal end portion of the supporting member 10 by a fixing tool 9 so as to rotate in contact with the heating cylindrical body 1 via a bracket 6a. The support roller 6 is provided with a bolt 9c at a tip end of the support member 10 with a thickness adjusting plate 9d interposed between a plate-like packing 9b and a fixing plate 9a.
Thus, the bracket 6a is fixed so that the height of the support roller 6 can be adjusted, so that the housing 7 and the support member U can easily follow the fluctuation of the heating cylinder 1.

Embodiment 4 FIG. Similarly to the above-described embodiment, the supply device B and the discharge device D connected to the rotary cylinder 1 are connected to the heating cylinder 1 via the support roller 6 provided on the engagement support member U connected to the lower housing 7. In the heat treatment apparatus configured to be variably supported by dynamic engagement above, the engagement support member U is connected to the lower housing 7 of the supply unit apparatus B and the discharge unit apparatus D. A support roller 6 for supporting the housing 7 is provided at the tip of the member 10 so as to rotate in contact with the heating cylinder 1. Then, as shown in FIG.
An elastic member 9e such as a leaf spring is interposed between the holding member 6b holding the holding member 6a and the plate-like packing 9b, and is fixed to the distal end portion of the supporting member 10 by pressing with the fixing plate 9a. The height of the heating cylinder 6 can be easily adjusted, and the heating cylinder 1 can also absorb a sudden change due to expansion and contraction due to thermal expansion and the like by the elastic member 9e. 1 has been made easier to follow.

The lower housing 7 of the supply device B and the discharge device D connected to the heating cylinder 1 as described above is supported on the rotating heating cylinder 1 via the support roller 6 by dynamic engagement. The heat treatment apparatus according to the present invention is configured such that the housing 7 is variably supported with respect to the machine frame P in accordance with the fluctuation of the heating cylinder 1 due to expansion and contraction due to thermal expansion and the like. A sealing member such as a gland packing 5 slidably provided between the heating cylinder 1 forming a rotating drum and the housing 7 of the supply section B and the discharge section D connected to both ends of the heating cylinder 1 Even when the heating cylinder 1 expands or contracts due to thermal expansion or the like, the housing 7 moves smoothly with the rollers S with respect to the machine frame P in accordance with the fluctuations. Unbalanced excessive load And it is configured to be supported so as not shells.

[0033]

According to the present invention, a fixed side member such as a supply / discharge device for a workpiece connected to a heating drum is formed so as to be movable, and a lower housing portion thereof is supported on a rotating heating cylinder. Since it is placed in dynamic engagement via a roller and has a relative engagement relationship in which the casing and the cylinder can be slid between the casing and the cylinder, the casing is protected against fluctuations due to thermal deformation of the rotating cylinder. In addition to being able to follow the portion, the radially expanding pressure of the cylindrical body is received by the entire sliding surface of the seal portion, and the vertical load of the fixed side member is received by the seal portion and the support roller dispersedly. Therefore, the seal member forming the sliding surface is not locally worn away, and a stable sealing effect can be maintained for a long period of time.

[Brief description of the drawings]

FIG. 1 is a view showing a general process using an externally heated rotary drum for heat-treating waste or the like, which is a prior example of the present invention.

FIG. 2 is an external view showing a part of a heat treatment apparatus according to the present invention, which includes an externally heated rotary drum.

FIG. 3 is a partial cross-sectional view showing the present invention in which a support roller is provided at a connection portion between a heating cylinder of a rotary drum and a supply and discharge device of a workpiece to be processed.

FIG. 4 is a view showing a modified example of a support roller provided at a connection portion between the heating cylinder and a supply / discharge device shown in FIG. 3;

FIG. 5 is a view showing another example of a support roller provided at a connection portion between the heating cylinder shown in FIG. 4 and a supply / discharge device.

FIG. 6 is a sectional view taken along the line XX in FIG. 2, showing a connecting portion between the heating cylinder and the housing.

FIG. 7 is a partial cross-sectional view showing a connecting portion between a heating cylinder of a rotary drum and a supply and discharge device for a workpiece in the prior invention of the present application.

FIG. 8 is a partial cross-sectional view showing a connecting portion between a conventional rotary kiln and a device for supplying an object to be processed.

FIG. 9 is a partial cross-sectional view showing a sealing structure between a heating cylinder and a fixed end in a rotary furnace.

FIG. 10 is a partial cross-sectional view showing another example of a connecting portion between a rotary kiln and a device for supplying an object to be processed.

[Explanation of symbols]

 A. Supply hopper B. Supply device C. Heated cylinder D. Discharge and supply device Heated cylinder F. Discharge device G. Storage tank H. Heating furnace J. Hot blast stove K. Packing M. Driving device R. Receiving roller U. Dynamic engagement member 1. cylindrical body Fitting collar 3. Annular fastener 4. Bolt 5. Gland packing 6. Support roller 7. Housing 8. Supply plate 9. Fixing tool

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F27B 7/08 F27B 7/33 7/32 7/34 7/33 F27D 7/02 A 7/34 B09B 3 / 00 ZAB F27D 7/02 303H (72) Inventor Nobuyuki Yoshioka 36-2, Hakozakicho, Nihonbashi, Chuo-ku, Tokyo (72) Inventor Hiroyuki Ishikawa 700-3 Miyaka 3 Shimizu City, Shizuoka Prefecture (72) Inventor Akihiro Akahori Tokyo 3-10-1-705 Wakabayashi, Setagaya-ku F-term (reference) 3K061 BA06 KA02 KA10 4D004 AA46 AC05 CA24 CA26 CA42 CB09 CB33 CB36 CB42 CB43 4K061 AA08 BA12 CA21 DA05 FA06 FA11 4K063 AA05 AA18 BA13 CA02 DA22 FA36

Claims (11)

[Claims] An external heating type heating cylindrical body for carrying out heat treatment while transferring an object to be processed is provided horizontally rotatably in the heating furnace so that both ends protrude outside the furnace. A rotary heat treatment apparatus formed and provided with a casing connected to a device for supplying a processing object at one end of the cylindrical body, and a housing connected to a device for discharging the processing object at the other end. In the above, the heating cylinder is rotatably supported by a plurality of support rollers at both ends outside the heating furnace, and the heating cylinder is connected to both ends of the cylinder. The housing is slidably sealed via a seal member between the housing and the housing, and the housing is displaceably supported on the heating cylindrical body via a dynamic engagement support member. Heat treatment equipment. 2. The rotary heating apparatus according to claim 1, wherein the housing is provided on a machine frame so as to be movable in a vertical direction. 3. The rotary heating apparatus according to claim 1, wherein the apparatus for supplying or discharging the object to be processed to or from the heating cylinder is connected to the housing via a flexible member. . 4. The rotating apparatus according to claim 1, wherein the dynamic engagement supporting member is constituted by at least one or more rotating rollers rotatably engaged on the heating cylindrical body. Heat treatment equipment. 5. The rotary heating apparatus according to claim 4, wherein said rotary roller is configured to be displaceable via an elastic member. 6. The rotary roller according to claim 4, wherein the rotary roller is configured to be adjustable via a position adjusting member.
6. The rotary heating apparatus according to any one of items 1 to 5. 7. The rotary heating apparatus according to claim 1, wherein the housing is provided on a machine frame so as to be movable at least in a vertical direction via a guide roller. 8. The rotary heating apparatus according to claim 1, wherein the heating cylinder is externally heated by hot air. 9. The rotary heating apparatus according to claim 1, wherein the heating cylinder is externally heated by electromagnetic induction. 10. The rotary heating apparatus according to claim 1, wherein the sealing member is formed by winding a sealing material having a string shape in a multilayer shape. 11. The rotary heating apparatus according to claim 1, wherein the seal member is formed of a braided gland packing.