Low-resistance six-stage cyclone preheater

Abstract

The utility model provides a low-resistance six-stage cyclone preheater, and relates to the field of preheaters, the low-resistance six-stage cyclone preheater comprises six preheating assemblies, each preheating assembly comprises a preheater and a discharging pipeline, a rotating part is arranged on an air inlet pipeline, a rotating channel is arranged in the rotating part, and the rotating channel is communicated with the preheater. By means of the rotary channel, hot air in the air inlet pipeline can be in a spiral shape, materials entering from the feeding pipeline can be blown away and preheated, then the materials can be blown away and preheated in a multi-stage mode through the preheaters, and therefore the materials can be heated in a multi-stage mode. The inner cylinder can enable blown-in hot air to rotate along the inner cylinder, the materials can be further blown away, the contact time of the materials and the hot air is prolonged, and due to the fact that cyclone is formed before the materials make contact with the hot air, resistance in the later period can be reduced, and preheating efficiency in the later period is improved.

Description

Technical Field

[0001] The present application relates to the field of preheaters, and in particular to a low-resistance six-stage cyclone preheater. Background Art

[0002] The main function of the preheater is to make full use of the waste heat of the exhaust gas discharged from the rotary kiln and the decomposition furnace to heat the raw material, so as to preheat the raw material and decompose part of the carbonate. In order to maximize the heat exchange efficiency between gas and solid and achieve high quality, high yield and low consumption of the entire calcination system, it is necessary to have three functions: uniform gas-solid dispersion, rapid heat exchange and efficient separation. The existing cyclone preheater has a large resistance and a poor preheating grade, so it is necessary to improve the current preheater. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a low-resistance six-stage cyclone preheater, which can solve the technical problem of high resistance.

[0004] An embodiment of the present application provides a low-resistance six-stage cyclone preheater, comprising six preheating components, wherein the preheating component comprises a preheater and a discharge pipe, wherein the preheaters are connected end to end in sequence through the discharge pipe, an inner cylinder is arranged inside the preheater, an air intake pipe is arranged on the side of the uppermost preheater, a feed pipe is arranged on the air intake pipe, the air intake pipe is arranged downward, the feed pipe is arranged upward, a rotating part is arranged on the air intake pipe, a rotating channel is arranged inside the rotating part, a discharge pipe is arranged at the lower end of the lowermost preheater, and an air outlet pipe is arranged at the uppermost preheater.

[0005] Preferably, a baffle is provided on the air outlet pipe, and a plurality of vent holes are provided on the baffle.

[0006] Preferably, a funnel is provided on the feed pipe, and the funnel is integrally formed with the feed pipe.

[0007] Preferably, the lower end of the preheater is configured to be retracted.

[0008] Preferably, a heat-insulating layer is provided outside the preheater.

[0009] Preferably, an air supply pipeline is provided on the side of the preheater.

[0010] Preferably, a conveyor belt is provided below the discharge pipe.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a low-resistance six-stage cyclone preheater, comprising six preheating components, wherein the preheating components comprise a preheater and a material discharge pipe, wherein the preheaters are sequentially connected end to end through the material discharge pipe, wherein an inner cylinder is arranged inside the preheater, an air intake pipe is arranged on the side of the uppermost preheater, a feed pipe is arranged on the air intake pipe, the air intake pipe is arranged downward, the feed pipe is arranged upward, a rotating part is arranged on the air intake pipe, a rotating channel is arranged inside the rotating part, and a discharge pipe is arranged at the lower end of the lowermost preheater. Pipeline, the preheater at the uppermost end is provided with an air outlet pipe, the rotating channel of the utility model can make the hot air inside the air inlet pipe spiral, can blow away and preheat the material entering from the feed pipe, and then the material can be preheated by multi-stage blowing through the preheater, and the inner cylinder of the utility model can make the blown hot air rotate along the inner cylinder, which can further blow away the material and prolong the contact time between the material and the hot air, because the utility model has formed a cyclone before the material contacts the hot air, which can reduce the resistance in the later stage and facilitate the efficiency of the later preheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] The reference numerals are:

[0016] 1. Preheating assembly; 2. Preheater; 3. Feeding pipe; 4. Inner tube; 5. Air inlet pipe; 6. Feeding pipe; 7. Rotating part; 8. Rotating channel; 9. Discharging pipe; 10. Air outlet pipe; 11. Baffle; 12. Funnel; 13. Air supply pipe; 14. Conveyor belt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] like Figure 1As shown, a low-resistance six-stage cyclone preheater comprises six preheating components 1, wherein the preheating component 1 comprises a preheater 2 and a feed pipe 3, wherein the preheaters 2 are connected end to end in sequence through the feed pipe 3, wherein an inner cylinder 4 is arranged inside the preheater 2, an air intake pipe 5 is arranged on the side of the uppermost preheater 2, a feed pipe 6 is arranged on the air intake pipe 5, the air intake pipe 5 is arranged downward, the feed pipe 6 is arranged upward, a rotating member 7 is arranged on the air intake pipe 5, a rotating channel 8 is arranged inside the rotating member 7, and a rotating member 7 is arranged at the lower end of the lowermost preheater 2. The discharge pipe 9, the preheater 2 at the uppermost end is provided with an air outlet pipe 10, the rotating channel 8 of the utility model can make the hot air inside the air inlet pipe 5 spiral, and can blow away and preheat the material entering from the feed pipe 6, and then the material can be preheated by multi-stage blowing through the preheater 2, and the inner cylinder 4 of the utility model can make the blown hot air rotate along the inner cylinder 4, which can further blow away the material and prolong the contact time between the material and the hot air, because the utility model has formed a cyclone before the material contacts the hot air, which can reduce the resistance in the later stage and facilitate the efficiency of the later preheating.

[0024] like Figure 1 As shown, in this embodiment, a baffle 11 is provided on the air outlet pipe 10 , and a plurality of vent holes are provided on the baffle 11 . The baffle 11 of the utility model can prevent materials from flying out of the air outlet pipe 10 .

[0025] like Figure 1 As shown, in this embodiment, in order to facilitate feeding, a funnel 12 is provided on the feeding pipe 6, and the funnel 12 is integrally formed with the feeding pipe.

[0026] like Figure 1 As shown, in this embodiment, in order to facilitate the gathering of materials and feeding them into the next preheater 2, the lower end of the preheater 2 is configured to be retracted.

[0027] like Figure 1 As shown, in this embodiment, a heat-insulating layer is provided outside the preheater 2 , and the heat-insulating layer of the utility model can prevent heat from being lost from the surface of the preheater 2 .

[0028] like Figure 1 As shown, in this embodiment, an air supply pipe 13 is provided on the side of the preheater 2. The air supply pipe 13 of the utility model can blow hot air into the preheater 2 to perform secondary preheating of the material.

[0029] like Figure 1 As shown, in this embodiment, a conveyor belt 14 is provided below the discharge pipe 9. The conveyor belt 14 of the utility model is convenient for conveying the preheated material to the next workstation.

[0030] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low resistance six-stage cyclone preheater, characterized in that: The invention comprises six preheating components, wherein the preheating components comprise a preheater and a material discharge pipe, wherein the preheaters are connected end to end in sequence through the material discharge pipe, an inner cylinder is arranged inside the preheater, an air intake pipe is arranged on the side of the uppermost preheater, a material feed pipe is arranged on the air intake pipe, the air intake pipe is arranged downward, the material feed pipe is arranged upward, a rotating part is arranged on the air intake pipe, a rotating channel is arranged inside the rotating part, a material discharge pipe is arranged at the lower end of the lowermost preheater, and an air outlet pipe is arranged on the uppermost preheater.

2. A low resistance six-stage cyclone preheater according to claim 1, characterized in that: The air outlet pipe is provided with a baffle plate, and the baffle plate is provided with a plurality of vent holes.

3. A low resistance six-stage cyclone preheater according to claim 1, characterized in that: A funnel is provided on the feed pipe, and the funnel is integrally formed with the feed pipe.

4. A low resistance six-stage cyclone preheater according to claim 1, characterized in that: The lower end of the preheater is arranged in a contracted manner.

5. The low-resistance six-stage cyclone preheater according to claim 1, characterized in that: A heat-insulating layer is arranged outside the preheater.

6. The low-resistance six-stage cyclone preheater according to claim 1, characterized in that: An air supply pipeline is arranged on the side of the preheater.

7. The low-resistance six-stage cyclone preheater according to claim 1, characterized in that: A conveyor belt is arranged below the discharge pipe.

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