SU970057A1

SU970057A1 - Rotary kiln seal

Info

Publication number: SU970057A1
Application number: SU792880540A
Authority: SU
Inventors: Илья Петрович Зинченко; Владимир Георгиевич Шмыгля
Original assignee: за вители
Priority date: 1979-12-20
Filing date: 1979-12-20
Publication date: 1982-10-30

Description

Изобретение относитс к произвол- . ству строительных материалов, а имен . но к технике уплотнени гхэр чёго. конца вращающейс печи и сушильных This invention relates to arbitrariness. building materials, and names. but to the gher chego compaction technique. the end of the rotary kiln and the drying

барабанов.the drums.

Известно уплотнение дл герметизации гор чего конца вращающихс печей, выполненное из отдельных листов резины , закрепленных на неподвижной камере печи и прижимаемых к вращающемус корпусу печи охватывающим тросом с грузами 11.A seal is known for sealing the hot end of a rotary kiln, made of separate sheets of rubber, mounted on a fixed chamber of the kiln and pressed against the rotary kiln body by a female cable with weights 11.

Несовершенство нажимного узла известных конструкций уплотнений не позвол ет получить одинаковое удельт ное давление в паре трени по всему периметру.The imperfection of the pressure assembly of known seal designs does not allow to obtain the same specific pressure in the friction pair along the entire perimeter.

Наиболее близким по технической сущности и достигаемому результату к изобретению вл етс уплотнение вращающейс печи, содержащее закрепленные на корпусе печи кольца, охватывающее печь подвижное уплотнительное кольцо, установленное на обечайке неподвижной камеры с зазором перекрытым уплотн ющим элементом ,2,The closest in technical essence and the achieved result to the invention is the seal of the rotary kiln, which contains rings fixed on the furnace body, a movable sealing ring that surrounds the furnace, mounted on the side of the fixed chamber with a gap covered by a sealing element, 2,

Однако известные устройства вслед1ствие сложности конструкции понижа1ЮТ надежность работы уплотнени .However, the known devices, due to the complexity of the design of the SW1T, provide reliable operation of the seal.

Целью изобретени вл етс упрощение конструкции уплотнени .The aim of the invention is to simplify the design of the seal.

Указанна цель достигаетс тем, что в уплотнении вращающейс печи, содержащем закрепленные на корпусе печи кольца, охватывающее печь подвижное уплотнительное кольцо, установленное на обечайке неподвижной камеры с зазором, перекрытым уплотн ю10 щим элементом, обечайка неподвижной камеры снабжена шпонкой, а уплотнительное кольцо выполнено, с пазом, в который входит шпонка.This goal is achieved by the fact that in the seal of a rotary kiln containing rings mounted on the furnace body, a movable sealing ring surrounding the furnace, mounted on the shell of the fixed chamber with a gap covered by the sealing element, the shell of the fixed chamber is provided with a key groove, which includes a key.

На фиг. 1 показана печь с уплотнением, продольный разрез; на фиг. 2 узел сопр жени шпонки с пазом уплотнительного кольца; на фиг. 3 - разрез А-А на фиг. 2.FIG. 1 shows a furnace with a seal, a longitudinal section; in fig. 2 a key with a groove on the sealing ring; in fig. 3 shows section A-A in FIG. 2

Уплотнение состоит из обечайки 1, The seal consists of a shell 1,

Claims

20 rigidly fixed on the fixed chamber 2. In the upper part of the shell 1 along its generators a key 3 is installed, which interacts with the groove 4 of the rotating sealing ring 5. The ring 5 encloses the furnace 6 and is placed between two rings 7 fixed to the furnace body 6. the lower part of the shell 1 is placed the pipe 8 for cleaning spillage. The internal diameter of the ring 5 is larger than the diameter of the furnace 6 by the amount of radial movement of the furnace body b. The ring 5 is movably mounted for axial movements relative to the fixed chamber 2. The air gap between the cylindrical shell and the sealing ring 5 is closed by a seal with the element 9, which is fixed along the perimeter of the outer ring of the ring 5 and pressed against the inner surface of the shell 1 by the spring element 10. The sealing element 9 can be made, for example, from graphite. Seal works as follows. During the axial course of the rotary kiln 6 together with the rings 7, the sealing ring 5 moves, and the sealing lip 5 is pressed against one of the rotating rings. But since the sealing ring 5 is held by the key 3, the ring 5 moves relative to the shell 1, and the friction occurs between the rotating ring 7 and the sealing ring 5. Since the sealing ring 5 has an inner diameter greater than the diameter of the furnace body b, the furnace body 6 together with the rings 7 freely moves in one of the radial x directions relative to the upset ring 5, the spillage entering the inner surface of the shell 1 is removed through nipple 8. Using the proposed labyrinth seal will increase the reliability of the seal by preventing the ring 5 from turning and directing it along the furnace axis b, as well as due to simplicity designs. Claims of the Rotary Furnace Seal containing rings mounted on the furnace body, a movable sealing ring that surrounds the furnace, mounted on a fixed chamber with a gap covered by a sealing element, characterized in that, to simplify the design, the shell of the fixed chamber is provided with a key, and the sealing ring performed with a groove, which includes a key. Sources of information taken into account in the examination of l.BoraHOB A.I. The rotation of a cement kiln furnace. M., Mechanical Engineering, I960, p. 126-138.

2. USSR author's certificate No. 577378, cl. F 27 B 7/24, 1976 (prototype).

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