Limestone rotary kiln preheating device
By installing a protective device in the limestone rotary kiln preheater and using a motor to drive the screw and screw hole block to move the circular cover, the problem of rainwater entering the preheater's interior is solved, improving the preheater's cleanliness and service life, and enhancing the device's protection and ease of maintenance.
Patent Information
- Application Number
- CN202423142277.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
In existing limestone rotary kiln preheaters, rainwater can easily fall into the preheater through the gap between the hopper and the preheater during heavy rain, leading to rust accumulation and affecting the cleanliness and service life of the preheater.
A limestone rotary kiln preheating device was designed. By setting up a protective device between the hopper and the preheater, including a motor-driven screw and screw hole block to drive the circular cover to move, the gap is wrapped to intercept rainwater. Combined with reinforcing ribs, sealing strips and connecting devices, the sealing performance and protection effect are improved.
It effectively prevents rainwater from entering the preheater, reduces rust accumulation, improves the cleanliness and service life of the preheater, and enhances the flexibility of disassembly and assembly and the convenience of maintenance.
Smart Images
Figure CN223580659U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to preheating equipment technical field especially relates to a limestone rotary kiln preheating device. BACKGROUND
[0002] The kiln tail of the limestone rotary kiln is usually provided with a waste gas heating type limestone preheater, that is, the heat of the waste gas generated by combustion in the rotary kiln is utilized to pre-decompose part of the limestone in the preheater bin body, the application of the waste gas heating type limestone preheater shortens the calcination time of the limestone in the rotary kiln, thereby shortening the length of the rotary kiln and reducing the energy consumption of the rotary kiln, and promoting the large-scale of the limestone rotary kiln.
[0003] The existing limestone rotary kiln preheater in the use process adopts the mode that the limestone is put into the bin through the lifting equipment, then the limestone is uniformly distributed into each chamber of the preheater through the discharge pipe, the waste gas generated by the rotary kiln enters the inside of the preheater through the kiln tail, then the high-temperature waste gas passes through the material layer and exchanges heat with the limestone, thereby achieving the preheating treatment of the limestone, and the preheated limestone is pushed into the rotary kiln through the hydraulic push rod for calcination.
[0004] However, due to the large spacing between the bin and the preheater, rainwater may fall into the inside of the preheater through the gap between the bin and the preheater in rainy weather, causing the rainwater to accumulate in the inside of the preheater, resulting in rust in the inside of the preheater, and affecting the cleanliness and service life of the inside of the preheater. INVENTION CONTENTS
[0005] The utility model aims at solving the shortcomings in the prior art and provides a limestone rotary kiln preheating device.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a limestone rotary kiln preheating device, including the preheater body, one side of the preheater body is provided with the bin, one side of the preheater body is provided with the discharge pipe, the discharge pipe is connected with the bin, one side of the preheater body is provided with the connecting pipe, one side of the preheater body is provided with the hydraulic push rod, one side of the preheater body is provided with the platform, one side of the platform is provided with the guardrail, one side of the bin is provided with the protection device, the connecting device is arranged between the guardrail and the platform, the protection device includes the circular ring, the circular ring is fixedly sleeved on the bin surface, one side of the circular ring is fixedly connected with the round hole plate, one side of the round hole plate is fixedly connected with the motor, the output end of the motor is fixedly connected with the screw rod, the surface of the screw rod is threadedly connected with the screw hole block, one side of the screw hole block is fixedly connected with the round cover, and the round cover is sleeved on the bin surface.
[0007] The effect achieved by the above-mentioned components is that: by setting the protection device, first starting the motor, the motor drives the screw rod to rotate, the screw rod drives the screw hole block to move up and down along the surface, the screw hole block drives the circular cover to move up and down along the surface of the silo, when the circular cover moves to the position between the silo and the preheater body, the circular cover completely wraps the gap between the silo and the preheater body and intercepts the rainwater from the outside, achieving the protection of the preheater body, reducing the rainwater falling into the preheater body through the gap between the silo and the preheater body in heavy rain, causing the rainwater to accumulate in the preheater body, resulting in rust inside the preheater body, improving the cleanliness and service life inside the preheater body.
[0008] Preferably, the surface of the circular cover is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at equal distances.
[0009] The effect achieved by the above-mentioned components is that: by setting the reinforcing ribs, the reinforcing ribs can increase the strength of the circular cover, reducing the situation that the circular cover is damaged by external collision during use.
[0010] Preferably, the end of the screw rod away from the motor is fixedly connected with a baffle, and the surface of the baffle is larger than the inner wall of the screw hole block.
[0011] The effect achieved by the above-mentioned components is that: by setting the baffle, the baffle can intercept the screw hole block during movement, reducing the situation that the screw hole block is separated from the surface of the screw rod during movement along the surface of the screw rod.
[0012] Preferably, the inner wall of the circular cover is fixedly connected with a sealing strip, and the surface of the sealing strip is attached to the surface of the silo.
[0013] The effect achieved by the above-mentioned components is that: by setting the sealing strip, the sealing strip can fill the gap between the circular cover and the silo, improving the sealing between the circular cover and the silo, and reducing the situation that the rainwater penetrates through the gap.
[0014] Preferably, one side of the circular ring is fixedly connected with a guide rod, one side of the circular cover is fixedly connected with a circular hole block, and the surface of the guide rod is slidably connected with the inner wall of the circular hole block.
[0015] The effect achieved by the above-mentioned components is that: by setting the guide rod, the guide rod can be located inside the circular hole block to assist in limiting the circular cover, reducing the situation that the circular cover shakes during movement.
[0016] Preferably, the connecting device comprises a cylinder fixedly connected with the platform, a threaded hole is formed in one side of the cylinder, a bolt is threadedly connected with the inner wall of the threaded hole, and a round hole rod is slidably connected with the inner wall of the cylinder and fixedly connected with the guardrail.
[0017] The above components achieve the effects that: by arranging the connecting device, the guardrail is first manually moved to drive the round hole rod to move, the inner wall of the threaded hole is overlapped with the inner wall of the round hole rod when the round hole rod is moved to the position of being completely inserted into the cylinder, the bolt is manually rotated at this time to be rotated into the position inside the threaded hole and the round hole rod to fix the position of the round hole rod and the guardrail, thereby achieving the assembly between the guardrail and the platform, and the guardrail can be conveniently disassembled subsequently, and the disassembly flexibility of the guardrail and the convenience of the later maintenance are improved.
[0018] Preferably, one end of the bolt is fixedly connected with a twisting block, and the surface of the twisting block is cross-shaped.
[0019] The above components achieve the effects that: by arranging the twisting block, the contact area of the bolt is increased, and the bolt can be conveniently rotated by manually rotating the twisting block.
[0020] Preferably, one side of the cylinder is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the platform.
[0021] The above components achieve the effects that: by arranging the supporting plate, the cylinder can be assisted and reinforced by the supporting plate, and the separation of the cylinder from the platform in the use process is reduced.
[0022] Compared with the prior art, the utility model has the advantages and positive effects that:
[0023] In the utility model, the gap between the material bin and the preheater body is completely wrapped and the rainwater outside is intercepted by arranging the protection device, the rainwater is prevented from falling into the preheater body through the gap between the material bin and the preheater body in heavy rain, the rainwater is prevented from accumulating in the preheater body, the rust in the preheater body is prevented, and the cleanliness and service life of the preheater body are improved. DRAWINGS
[0024] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0025] Figure 2 It is a local structure schematic view of the ring of the utility model;
[0026] Figure 3 It is a local structure schematic view of the ring of the utility model;
[0027] Figure 4 It is the partial structure diagram of the cylinder of the utility model.
[0028] Legend: 1, preheater body; 2, stock bin; 3, blanking tube; 4, hydraulic push rod; 5, connecting pipe; 6, platform; 7, guardrail; 8, protection device; 81, circular ring; 82, round hole plate; 83, motor; 84, screw rod; 85, screw hole block; 86, round cover; 87, reinforcing rib; 88, baffle; 89, sealing strip; 810, guide rod; 811, round hole block; 9, connecting device; 91, cylinder; 92, screw hole; 93, round hole rod; 94, bolt; 95, screw block; 96, support plate. DETAILED DESCRIPTION
[0029] Referring to Figures 1-4 The embodiment discloses a limestone rotary kiln preheating device, including a preheater body 1, a stock bin 2 is arranged on one side of the preheater body 1, a blanking tube 3 is arranged on one side of the preheater body 1, the blanking tube 3 is connected with the stock bin 2, a connecting pipe 5 is arranged on one side of the preheater body 1, a hydraulic push rod 4 is arranged on one side of the preheater body 1, a platform 6 is arranged on one side of the preheater body 1, a guardrail 7 is arranged on one side of the platform 6, a protection device 8 is arranged on one side of the stock bin 2, a connecting device 9 is arranged between the guardrail 7 and the platform 6, the protection device 8 includes a circular ring 81, the circular ring 81 is fixedly sleeved on the surface of the stock bin 2, a round hole plate 82 is fixedly connected on one side of the circular ring 81, a motor 83 is fixedly connected on one side of the round hole plate 82, a screw rod 84 is fixedly connected on the output end of the motor 83, a screw hole block 85 is screw-connected on the surface of the screw rod 84, a round cover 86 is fixedly connected on one side of the screw hole block 85, and the round cover 86 is sleeved on the surface of the stock bin 2. By arranging the protection device 8, firstly, the motor 83 is started, so that the motor 83 drives the screw rod 84 to rotate, the screw rod 84 drives the screw hole block 85 to move up and down along the surface thereof, and the screw hole block 85 drives the round cover 86 to move up and down along the surface of the stock bin 2. When the round cover 86 moves to the interval position between the stock bin 2 and the preheater body 1, the round cover 86 completely wraps the interval between the stock bin 2 and the preheater body 1 and intercepts the rainwater outside, so that the preheater body 1 is protected, and the rainwater is prevented from falling into the preheater body 1 through the interval between the stock bin 2 and the preheater body 1 in heavy rain, so that the rainwater is prevented from accumulating in the preheater body 1, the rust inside the preheater body 1 is avoided, and the cleanliness and service life of the preheater body 1 are improved.
[0030] Referring to Figure 2 And Figure 3As shown, the embodiment discloses that the surface of the circular cover 86 is provided with a plurality of reinforcing ribs 87, and the plurality of reinforcing ribs 87 are arranged at equal distances. By arranging the reinforcing ribs 87, the reinforcing ribs 87 can increase the strength of the circular cover 86, reduce the situation that the circular cover 86 is damaged by being collided by external objects during use, and the end of the screw rod 84 away from the motor 83 is fixedly connected with a baffle 88, the surface of the baffle 88 is larger than the inner wall of the threaded hole block 85, and by arranging the baffle 88, the baffle 88 can intercept the threaded hole block 85 during movement, so that the situation that the threaded hole block 85 is separated from the surface of the screw rod 84 during movement on the surface of the screw rod 84 is reduced.
[0031] Referring to Figure 2 and Figure 3 As shown, the embodiment discloses that the inner wall of the circular cover 86 is fixedly connected with a sealing strip 89, the surface of the sealing strip 89 is attached to the surface of the bin 2, by arranging the sealing strip 89, the sealing strip 89 can fill the gap between the circular cover 86 and the bin 2, improve the sealing performance between the circular cover 86 and the bin 2, and reduce the situation that external rainwater seeps in through the gap, one side of the circular ring 81 is fixedly connected with a guide rod 810, one side of the circular cover 86 is fixedly connected with a circular hole block 811, the surface of the guide rod 810 is in sliding connection with the inner wall of the circular hole block 811, by arranging the guide rod 810, the guide rod 810 can be located inside the circular hole block 811 to assist in limiting the circular cover 86, and the situation that the circular cover 86 shakes during movement is reduced.
[0032] Referring to Figure 4 As shown, the embodiment discloses that the connecting device 9 comprises a cylinder 91, the cylinder 91 is fixedly connected with the platform 6, one side of the cylinder 91 is provided with a threaded hole 92, the inner wall of the threaded hole 92 is threadedly connected with a bolt 94, the inner wall of the cylinder 91 is slidingly connected with a circular hole rod 93, the circular hole rod 93 is fixedly connected with the guardrail 7, the surface size and shape of the bolt 94 are matched with the inner wall size and shape of the circular hole rod 93, by arranging the connecting device 9, first, the guardrail 7 is manually moved, so that the guardrail 7 drives the circular hole rod 93 to move, when the circular hole rod 93 moves to a position completely inserted into the inside of the cylinder 91, the inner wall of the threaded hole 92 is coincided with the inner wall of the circular hole rod 93, at this time, the bolt 94 is manually rotated to rotate into the inside of the threaded hole 92 and the circular hole rod 93 to fix the position of the circular hole rod 93 and the guardrail 7, so that the assembly between the guardrail 7 and the platform 6 is achieved, and the guardrail 7 can be conveniently disassembled subsequently, so that the disassembly flexibility of the guardrail 7 and the convenience of later maintenance are improved.
[0033] Referring to Figure 4As shown, the bolt 94 is fixedly connected with a screw block 95 at one end, the surface of the screw block 95 is cross-shaped, by setting the screw block 95, the screw block 95 can increase the contact area of the bolt 94, so that the personnel can conveniently rotate the bolt 94 by manually rotating the screw block 95, one side of the cylinder 91 is fixedly connected with a supporting plate 96, the supporting plate 96 is fixedly connected with the platform 6, by setting the supporting plate 96, the supporting plate 96 can assist in supporting and reinforcing the cylinder 91, and the separation of the cylinder 91 from the platform 6 in the use process is reduced.
[0034] Working principle: first, the limestone is put into the stock bin 2 through the lifting equipment, then the limestone is uniformly distributed into each chamber of the preheater through the discharge pipe 3, then the exhaust gas generated by the rotary kiln enters the inside of the preheater through the kiln tail, then the high-temperature exhaust gas passes through the material layer, and heat exchange occurs between the high-temperature exhaust gas and the limestone, so that the limestone is preheated, and at the same time, the preheated limestone is pushed into the rotary kiln through the hydraulic push rod 4 through the connecting pipe 5 for calcination.
[0035] First, start the motor 83, so that the motor 83 drives the screw rod 84 to rotate, so that the screw rod 84 drives the screw hole block 85 to move up and down along the surface, so that the screw hole block 85 drives the circular cover 86 to move up and down along the surface of the stock bin 2, when the circular cover 86 moves to the position between the stock bin 2 and the preheater body 1, the circular cover 86 completely wraps the gap between the stock bin 2 and the preheater body 1 and intercepts the rainwater from the outside, so as to protect the preheater body 1.
[0036] First, manually move the guardrail 7, so that the guardrail 7 drives the circular hole rod 93 to move, when the circular hole rod 93 moves to the position of being completely inserted into the inside of the circular cylinder 91, the inner wall of the threaded hole 92 and the inner wall of the circular hole rod 93 coincide, at this time, manually rotate the screw block 95, so that the screw block 95 drives the bolt 94 to rotate, so that the bolt 94 rotates into the inside position of the threaded hole 92 and the circular hole rod 93 to fix the position of the circular hole rod 93 and the guardrail 7, thereby achieving the assembly between the guardrail 7 and the platform 6, and at the same time, the guardrail 7 can be conveniently disassembled subsequently.
[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
Claims
1. A limestone rotary kiln preheating device, comprising a preheater body (1), characterized in that: A hopper (2) is provided on one side of the preheater body (1), a discharge pipe (3) is provided on one side of the preheater body (1), the discharge pipe (3) is connected to the hopper (2), a connecting pipe (5) is provided on one side of the preheater body (1), a hydraulic push rod (4) is provided on one side of the preheater body (1), a platform (6) is provided on one side of the preheater body (1), a guardrail (7) is provided on one side of the platform (6), a protective device (8) is provided on one side of the hopper (2), and a space is provided between the guardrail (7) and the platform (6). A connecting device (9) is provided. The protective device (8) includes a ring (81). The ring (81) is fixedly sleeved on the surface of the hopper (2). A circular hole plate (82) is fixedly connected to one side of the ring (81). A motor (83) is fixedly connected to one side of the circular hole plate (82). A screw (84) is fixedly connected to the output end of the motor (83). A screw hole block (85) is threadedly connected to the surface of the screw (84). A circular cover (86) is fixedly connected to one side of the screw hole block (85). The circular cover (86) is sleeved on the surface of the hopper (2).
2. The limestone rotary kiln preheating device according to claim 1, characterized in that: The surface of the dome (86) is provided with a plurality of reinforcing ribs (87), which are arranged at equal intervals.
3. The limestone rotary kiln preheating device according to claim 1, characterized in that: A baffle (88) is fixedly connected to the end of the screw (84) away from the motor (83), and the surface of the baffle (88) is larger than the inner wall of the screw hole block (85).
4. The limestone rotary kiln preheating device according to claim 1, characterized in that: A sealing strip (89) is fixedly connected to the inner wall of the circular cover (86), and the surface of the sealing strip (89) is in contact with the surface of the hopper (2).
5. A limestone rotary kiln preheating device according to claim 1, characterized in that: A guide rod (810) is fixedly connected to one side of the ring (81), and a circular hole block (811) is fixedly connected to one side of the cover (86). The surface of the guide rod (810) is slidably connected to the inner wall of the circular hole block (811).
6. The limestone rotary kiln preheating device according to claim 1, characterized in that: The connecting device (9) includes a cylinder (91), which is fixedly connected to the platform (6). A threaded hole (92) is provided on one side of the cylinder (91). A bolt (94) is threadedly connected to the inner wall of the threaded hole (92). A round hole rod (93) is slidably connected to the inner wall of the cylinder (91). The round hole rod (93) is fixedly connected to the guardrail (7). The surface size and shape of the bolt (94) are adapted to the size and shape of the inner wall of the round hole rod (93).
7. A limestone rotary kiln preheating device according to claim 6, characterized in that: One end of the bolt (94) is fixedly connected to a screw block (95), the surface of which is cross-shaped.
8. A limestone rotary kiln preheating device according to claim 6, characterized in that: A support plate (96) is fixedly connected to one side of the cylinder (91), and the support plate (96) is fixedly connected to the platform (6).