Temperature-equalizing and pressure-equalizing channel structure for air intake of rotary cement kiln

Abstract

The utility model discloses a temperature-equalizing and pressure-equalizing channel structure for air intake of a rotary cement kiln, and belongs to the field of rotary furnaces. The problems that impurities are difficult to clean and the air inlet area is difficult to flexibly adjust are solved. The air inlet channel is defined by the first shell and the second shell, and when the air inlet area needs to be adjusted, the electric push rod is started to drive the first shell and the second shell to move on the fixing plate, so that the area of the defined air inlet channel is adjusted and controlled, the air flow in the kiln can flexibly cope with load fluctuation, and the air inlet area is adjusted. And meanwhile, a first moving rod is extruded through a first shell and a second shell, then a first air bag is extruded, gas in the first air bag flows into a second air bag under the extrusion effect, the second air bag pushes a scraping plate to move, impurities are scraped down, and therefore cleaning of the impurities is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rotary furnace, especially cement rotary kiln air inlet's even temperature even pressure passageway structure. BACKGROUND

[0002] Cement rotary kiln air inlet passageway is a crucial part in the cement production process, mainly responsible for introducing air into the rotary kiln, and ensuring the stability and control of airflow to promote the combustion, heat exchange and material handling process in the kiln, as the core equipment in the cement production line, the design and operation of its air inlet passageway have important influence on the efficiency, energy consumption, emission and other aspects of the whole cement production process.

[0003] But the air inlet passageway in the prior art in the process of use, with the lapse of time, impurities will adhere to the air inlet passageway mouth, form the deposit, these deposits can increase the resistance of airflow through, cause airflow passage to narrow, thereby reduce the air flow, influence the combustion efficiency in the kiln, it is difficult to clean the impurities;

[0004] And the production load of rotary kiln can fluctuate according to the proportion of raw materials, fuel type, production plan and other factors, but the air inlet area of the existing air inlet passageway is usually fixed, the air flow in the kiln cannot flexibly respond to these fluctuations, which may cause too much or too little air to enter the kiln, affecting the combustion process;

[0005] In view of the above technical defects, a solution is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at providing cement rotary kiln air inlet's even temperature even pressure passageway structure to solve the technical defects proposed in the background art.

[0007] The utility model can realize the purpose that the utility model discloses a cement rotary kiln air inlet's even temperature even pressure passageway structure, including fixed plate, the movable installation of shell one and shell two is carried out on fixed plate, shell one and shell two snap together, and the fixed installation of electric push rod is carried out on fixed plate, and the fixed connection of electric push rod output end and shell one and shell two is carried out;

[0008] The fixed installation of cleaning assembly is further carried out on fixed plate, and cleaning assembly includes moving rod one, moving rod two, air bag one and air bag two, and moving rod one end is fixedly connected with air bag one, and moving rod two one end is fixedly connected with air bag two, and air bag one is fixedly connected with air bag two through pipeline, and the fixed installation of scraper is carried out on the end of moving rod two away from air bag two, and the side of scraper is opposite with the inner wall of shell one and shell two.

[0009] Preferably, the side of shell one and shell two is fixedly installed with moving plate, and the moving groove is set up in fixed plate, and the movable installation of moving plate is carried out in moving groove.

[0010] Preferably, the shell one side close to the shell two fixedly installed with the clamping block one, the clamping block one side is provided with the clamping groove one, the shell two close to the shell one side fixedly installed with the clamping block two, the clamping block two one side is provided with the clamping groove two, the clamping block one is movably installed in the clamping groove two, and the clamping block two is movably installed in the clamping groove one.

[0011] Preferably, the fixed plate is fixedly provided with the fixed pipe one, the movable rod one is movably installed in the fixed pipe one, and the air bag one is fixedly installed in the fixed pipe one.

[0012] Preferably, the fixed plate bottom is fixedly provided with the fixed pipe two, the movable rod two is movably installed in the fixed pipe two, and the air bag two is fixedly installed in the fixed pipe two.

[0013] Preferably, the movable rod two is fixedly provided with the connecting block at the end away from the air bag two, and the connecting block is fixedly connected with the scraper.

[0014] The beneficial effects of the utility model are as follows:

[0015] (1) the utility model discloses a cooperation of shell one and shell two, utilizes the air inlet channel formed by shell one and shell two, when needing to adjust the air inlet area, starts electric push rod and drives shell one and shell two to move on the fixed plate, thereby adjusting and controlling the air inlet channel area formed by the cooperation, so that the gas flow in the kiln can flexibly respond to load fluctuation, and the combustion process is avoided to be influenced.

[0016] (2) the utility model discloses the cooperation of movable rod one and movable rod two, when needing to clean the air inlet channel, starts electric push rod, drives shell one and shell two to reciprocate, in the movement process, movable rod one is extruded by shell one and shell two, and then air bag one is extruded, and the gas in air bag one flows to air bag two under the extrusion, and the scraper is driven to move by air bag two, and the impurities are scraped off, so that the cleaning of the impurities is realized. ACCURACY OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings.

[0018] Figure 1 It is the structure schematic diagram of the utility model.

[0019] Figure 2 It is the structure schematic diagram of shell one and shell two in the utility model.

[0020] Figure 3 It is the structure schematic diagram of the fixed plate in the utility model.

[0021] Figure 4 It is the structure schematic diagram of the movable slot in the utility model.

[0022] Figure 5 is a structural schematic view of the push plate.

[0023] Legend: 1, fixed plate; 101, shell one; 102, shell two; 103, electric push rod; 104, moving plate; 105, moving groove; 106, clamping block one; 107, clamping groove one; 108, clamping block two; 109, clamping groove two; 2, cleaning assembly; 201, moving rod one; 202, moving rod two; 203, air bag one; 204, air bag two; 205, scraper; 206, fixed tube one; 207, push plate; 208, fixed tube two; 209, connecting block. DETAILED DESCRIPTION

[0024] 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.

[0025] The present embodiment is used to solve the problem that the production load of the rotary kiln fluctuates according to factors such as the proportioning of raw materials, the type of fuel, and the production plan, but the existing air inlet area is usually fixed, so the air flow in the kiln cannot flexibly respond to these fluctuations, which may cause too much or too little air to enter the kiln, affecting the combustion process.

[0026] Please refer to Figure 1 - Figure 3 The present embodiment is a uniform temperature and pressure passage structure for air inlet of a cement rotary kiln, which comprises a fixed plate 1, a shell one 101 and a shell two 102 movably installed on the fixed plate 1, the shell one 101 and the shell two 102 being connected by clamping, an electric push rod 103 fixedly installed on the fixed plate 1, an output end of the electric push rod 103 being fixedly connected with the shell one 101 and the shell two 102, a moving plate 104 fixedly installed on one side of each of the shell one 101 and the shell two 102, a moving groove 105 formed in the fixed plate 1, and the moving plate 104 movably installed in the moving groove 105.

[0027] When the electric push rod 103 is started, the shell one 101 and the shell two 102 are driven to move, at this time the moving plate 104 moves in the moving groove 105, and a sealing device is fixedly installed at the connection between the shell one 101 and the shell two 102 and in the moving groove 105, for ensuring the sealing property of the air inlet passage, which is not shown in the figure.

[0028] The shell one 101 is fixedly installed with the clamping block one 106 on one side close to the shell two 102, the clamping block one 106 is provided with the clamping groove one 107 on one side, the shell two 102 is fixedly installed with the clamping block two 108 on one side close to the shell one 101, the clamping block two 108 is provided with the clamping groove two 109 on one side, the clamping block one 106 is movably installed in the clamping groove two 109, and the clamping block two 108 is movably installed in the clamping groove one 107.

[0029] Through the linkage cooperation of the clamping block one 106 and the clamping block two 108, the stability of the connection between the shell one 101 and the shell two 102 is guaranteed, and the shell one 101 and the shell two 102 simultaneously play a guiding role and avoid deviation when moving.

[0030] That is, the shell one 101 and the shell two 102 are used to form the air inlet channel, when it is needed to adjust the air inlet area, the electric push rod 103 is started to drive the shell one 101 and the shell two 102 to move on the fixed plate 1, so that the air inlet channel area formed by the shell one 101 and the shell two 102 is adjusted and controlled, the air flow in the kiln can flexibly respond to load fluctuation, and the combustion process is avoided.

[0031] The embodiment is used to solve the problem that impurities will be attached to the air inlet channel port to form deposits as time goes by, the deposits increase the resistance of airflow passing, cause the airflow channel to be narrowed, thereby reducing the air flow, and affect the combustion efficiency in the kiln, and it is difficult to clean the impurities.

[0032] Please refer to Figure 4 - Figure 5 As shown in the figure, the utility model also includes cleaning assembly 2, fixed plate 1 still fixedly installed with cleaning assembly 2, cleaning assembly 2 includes moving rod one 201, moving rod two 202, air bag one 203 and air bag two 204, moving rod one 201 end and air bag one 203 fixed connection, moving rod two 202 one end and air bag two 204 fixed connection, air bag one 203 passes through pipeline and air bag two 204 fixed connection, moving rod two 202 the end away from air bag two 204 is fixedly installed with scraper 205, and the scraper 205 one side and shell one 101 and shell two 102 inner wall are resisted.

[0033] Wherein moving rod one 201 and moving rod two 202 are all provided with multiple groups, so the scraper 205 is also provided with multiple, and the cleaning efficiency of impurities is improved through multiple scraper 205.

[0034] The fixed plate 1 is fixedly provided with a fixed pipe 206, the movable rod 201 is movably arranged in the fixed pipe 206, the air bag 203 is fixedly arranged in the fixed pipe 206, the movable rod 201 is movably arranged with a push plate 207 at one end away from the air bag 203, the fixed plate 1 is fixedly provided with a fixed pipe 208 at the bottom, the movable rod 202 is movably arranged in the fixed pipe 208, the air bag 204 is fixedly arranged in the fixed pipe 208, the movable rod 202 is fixedly arranged with a connecting block 209 at one end away from the air bag 204, and the connecting block 209 is fixedly connected with the scraper 205.

[0035] In the initial state, the push plate 207 is in a vertical state, at this time, the shell 101 and the shell 102 do not contact the push plate 207 when moving, that is, when the channel is normally used, the movable rod 201 does not move, when the interior needs to be cleaned, the push plate 207 is rotated to be in a horizontal state, at this time, the shell 101 and the shell 102 are driven to reciprocate, and the shell 101 and the shell 102 abut against the push plate 207 when moving, so as to drive the movable rod 201 to move.

[0036] Further, the spring is fixedly arranged in the air bag 203, which is used for resetting the movable rod 201, and in the reciprocating process of the shell 101 and the shell 102, the air bag 203 periodically expands and contracts, and the air bag 204 also contracts and expands accordingly, at this time, the scraper 205 reciprocates in the interior, and the direction of each movement is opposite to the direction of movement of the shell 101 and the shell 102, so as to improve the cleaning area and the cleaning efficiency.

[0037] That is, when the air inlet channel needs to be cleaned, the electric push rod 103 is started to drive the shell 101 and the shell 102 to reciprocate, in the movement process, the movable rod 201 is pressed by the shell 101 and the shell 102, and then the air bag 203 is pressed, the gas in the air bag 203 flows into the air bag 204 under the pressing action, the scraper 205 is driven to move by the air bag 204, and the impurities are scraped off, so as to realize the cleaning of the impurities.

[0038] In combination with the first and second embodiments, the shell 101 and the shell 102 are used to form the air inlet channel, when the air inlet area needs to be adjusted, the electric push rod 103 is started to drive the shell 101 and the shell 102 to move on the fixed plate 1, so as to adjust and control the area of the air inlet channel formed by the shell 101 and the shell 102, so that the air flow in the kiln can flexibly respond to load fluctuations, and the combustion process is avoided to be affected, and at the same time, the movable rod 201 is pressed by the shell 101 and the shell 102, and then the air bag 203 is pressed, the gas in the air bag 203 flows into the air bag 204 under the pressing action, the scraper 205 is driven to move by the air bag 204, and the impurities are scraped off, so as to realize the cleaning of the impurities.

[0039] The working process and principle of the utility model are as follows:

[0040] Firstly, the air inlet channel is formed by the shell one 101 and the shell two 102, when the air inlet area needs to be adjusted, the electric push rod 103 is started to drive the shell one 101 and the shell two 102 to move on the fixed plate 1, so that the air inlet channel area is adjusted and controlled, the air flow in the kiln can flexibly cope with load fluctuation, and the combustion process is avoided from being affected;

[0041] Further, the moving rod one 201 is extruded by the shell one 101 and the shell two 102, and then the air bag one 203 is extruded, the gas in the air bag one 203 flows into the air bag two 204 under the extrusion, the scraper 205 is driven to move by the air bag two 204, and the impurities are scraped off, so that the impurities are cleaned;

[0042] That is, the utility model realizes the flexible adjustment of the air inlet area and also realizes the cleaning of the impurities in the air inlet channel.

[0043] The above content is only an example and description of the structure of the utility model, and the skilled person in the art makes various modifications or supplements or adopts similar ways to replace, as long as it does not deviate from the structure of the utility model or exceed the range defined by the claims, which shall belong to the protection scope of the utility model.

[0044] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Obviously, according to the content of the present application, many modifications and changes can be made. The present application selects and describes these embodiments in order to better explain the principle and practical application of the utility model, so that the skilled person in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A structure of uniform temperature and pressure passage for air inlet of a cement rotary kiln, comprising a fixed plate (1), characterized in that, The fixed plate (1) is movably provided with a shell one (101) and a shell two (102), the shell one (101) and the shell two (102) are clamped and connected, and the fixed plate (1) is fixedly provided with an electric push rod (103), and the output end of the electric push rod (103) is fixedly connected with the shell one (101) and the shell two (102). The fixed plate (1) is also fixedly provided with a cleaning assembly (2), the cleaning assembly (2) comprises a moving rod one (201), a moving rod two (202), an air bag one (203) and an air bag two (204), one end of the moving rod one (201) is fixedly connected with the air bag one (203), one end of the moving rod two (202) is fixedly connected with the air bag two (204), the air bag one (203) is fixedly connected with the air bag two (204) through a pipeline, and the end of the moving rod two (202) away from the air bag two (204) is fixedly provided with a scraper (205), and one side of the scraper (205) abuts against the inner wall of the shell one (101) and the shell two (102).

2. The uniform temperature and pressure channel structure for the inlet of a cement rotary kiln according to claim 1, characterized in that, The shell one (101) and the shell two (102) are fixedly provided with a moving plate (104) on one side, and the fixed plate (1) is provided with a moving groove (105).

3. The uniform temperature and pressure channel structure for the inlet of a cement rotary kiln according to claim 2, characterized in that, The shell one (101) is fixedly provided with a clamping block one (106) on the side close to the shell two (102), and the clamping block one (106) is provided with a clamping groove one (107) on one side. The shell two (102) is fixedly provided with a clamping block two (108) on the side close to the shell one (101), and the clamping block two (108) is provided with a clamping groove two (109) on one side, the clamping block one (106) is movably arranged in the clamping groove two (109), and the clamping block two (108) is movably arranged in the clamping groove one (107).

4. The uniform temperature and pressure channel structure for the inlet of a cement rotary kiln according to claim 1, characterized in that, The fixed plate (1) is fixedly provided with a fixed pipe one (206), the moving rod one (201) is movably arranged in the fixed pipe one (206), and the air bag one (203) is fixedly arranged in the fixed pipe one (206).

5. The uniform temperature and pressure channel structure for the inlet of a cement rotary kiln according to claim 4, characterized in that, The fixed plate (1) is fixedly provided with a fixed pipe two (208) at the bottom, the moving rod two (202) is movably arranged in the fixed pipe two (208), and the air bag two (204) is fixedly arranged in the fixed pipe two (208).

6. The uniform temperature and pressure channel structure for cement rotary kiln inlet gas according to claim 5, characterized in that, The end of the moving rod two (202) away from the air bag two (204) is fixedly provided with a connecting block (209), and the connecting block (209) is fixedly connected with the scraper (205).

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