A strontium hydroxide precipitation high-temperature calcination device

Abstract

The application discloses a strontium hydroxide precipitation high-temperature calcining device, which comprises a mounting frame, a furnace cylinder horizontally arranged on the mounting frame, feed inlets and discharge outlets arranged on the two sides of the furnace cylinder respectively, an air feed frame vertically arranged on one side of the upper end surface of the mounting frame, one end of the air feed frame fixed to the furnace cylinder, a guide chute arranged on the air feed frame and communicated with the feed inlet of the furnace cylinder, a combustion machine installed on the upper end surface of the furnace cylinder, a heat exhaust pipe vertically connected to one side of the furnace cylinder away from the combustion machine, a material rotating control assembly arranged in the furnace cylinder with the same center, a material storage seat connected to the discharge outlet of the furnace cylinder through an adjusting pipe, a material box arranged on one side of the mounting frame, one end of the material storage seat communicated with the material box, a switching pipe communicated with the material box, one end of the switching pipe communicated with the combustion machine through a heat recovery pipe.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of calcining equipment, and specifically relates to a strontium hydroxide precipitation high-temperature calcining device. BACKGROUND

[0002] Strontium hydroxide is a hydroxide of strontium, which can be obtained by reacting strontium salt with sodium hydroxide. Strontium hydroxide has good thermal stability and hygroscopicity, and is widely used in some industrial fields. At present, only rolling heating is performed in the calcining furnace in most calcining equipment. Since the strontium hydroxide product is affected by the calcining temperature, when the calcining furnace is heated too quickly, the material will expand and contract excessively, which is easy to cause the rupture and damage of the material. Therefore, the technical personnel in the field provide a strontium hydroxide precipitation high-temperature calcining device to solve the problems in the background art. SUMMARY

[0003] To achieve the above-mentioned purpose, the application provides the following technical scheme: a strontium hydroxide precipitation high-temperature calcining device, which comprises:

[0004] a mounting frame;

[0005] a furnace cylinder, which is horizontally arranged on the mounting frame, and two sides of the furnace cylinder are respectively provided with a feeding port and a discharging port;

[0006] a feeding frame, which is arranged on one side of the upper end surface of the mounting frame, one end of the feeding frame is fixed to the furnace cylinder, and a material guide groove is arranged on the feeding frame and is in communication with the feeding port of the furnace cylinder;

[0007] an inner end cover, which is detachably and sealingly arranged at two ends of the furnace cylinder;

[0008] a combustion machine, which is arranged on one side of the upper end surface of the furnace cylinder, and the lower end of the combustion machine is in communication with the furnace cylinder;

[0009] a heat exhaust pipe, which is vertically connected to one side of the furnace cylinder away from the combustion machine;

[0010] a material rotating control assembly, which is arranged in the furnace cylinder with the same center;

[0011] a material storage seat, which is connected to the discharging port of the furnace cylinder through an adjusting pipe; and

[0012] a material box, which is arranged on one side of the mounting frame, one end of the material storage seat is in communication with the material box, and a switching pipe is further arranged on the material box and is in communication with the combustion machine through the heat exhaust pipe.

[0013] Further, as preferred, one end of the furnace cylinder is rotationally connected with the mounting frame, and a hydraulic telescopic rod is arranged on the mounting frame, one end of the hydraulic telescopic rod is communicated with the furnace cylinder, and the deflection angle of the furnace cylinder is within the range of 25° to -25°.

[0014] Further, as preferred, the material rotating control assembly comprises:

[0015] an intermediate shaft rotationally arranged in the furnace cylinder;

[0016] a connecting shaft base fixed in the furnace cylinder, an inner cylinder tube is coaxially rotationally arranged in the furnace cylinder, and one end of the intermediate shaft is fixed with the inner cylinder tube;

[0017] a driving motor mounted on the feeding frame, and an output end of the driving motor is connected with the intermediate shaft through a transmission chain;

[0018] an inner mounting cylinder coaxially arranged on the intermediate shaft and located in the inner cylinder tube.

[0019] Further, as preferred, an airflow pipe is vertically arranged on the connecting shaft base, and an annular cavity is arranged in the connecting shaft base, and a plurality of airflow holes are circumferentially distributed on the annular cavity.

[0020] Further, as preferred, the inner mounting cylinder comprises:

[0021] a plurality of adapter rods, one end of each of the adapter rods is hingedly connected with the intermediate shaft;

[0022] an inner cover plate corresponding to the adapter rods, one end of the adapter rod is rotationally connected with the inner cover plate;

[0023] an outer shaft sleeve slidingly sleeved on the intermediate shaft, a plurality of inner connecting rods are rotationally connected on the outer shaft sleeve, the inner connecting rods are arranged in an X-shaped staggered manner with the adapter rods, and one end of the inner connecting rod is hingedly connected with the inner cover plate;

[0024] a positioning base fixed on the feeding frame, a sealing bin is fixed on the positioning base, and a ring plug is slidingly arranged in the sealing bin;

[0025] a sleeve body rotationally sleeved on the outer shaft sleeve, and the ring plug is fixed with the sleeve body through a plurality of supporting rods.

[0026] Further, as preferred, the plurality of inner cover plates are mutually overlapped and matched, so that the inner diameter of the inner mounting cylinder is within the adjustment range of 0.8m to 1.5m.

[0027] Further, as preferred, a plurality of material holes are arranged on the inner cover plate, and the material holes can be blocked by adjacent inner cover plates.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] In the present application, the inner mounting cylinder is arranged in the inner cylinder tube of the furnace cylinder. When the combustion machine calcines the strontium hydroxide precipitate in the inner cylinder tube, on the one hand, the inner mounting cylinder can rotate synchronously with the inner cylinder tube to assist the distributed bulk material of the strontium hydroxide precipitate, so as to avoid excessive accumulation of the material. In particular, in the process of calcining the strontium hydroxide precipitate, the inner mounting cylinder can temporarily bear the strontium hydroxide precipitate, so as to avoid excessive expansion and cold shrinkage of the material caused by rapid temperature rise in the furnace cylinder, and to realize intermittent calcination of the strontium hydroxide precipitate (i.e. to keep the temperature constant after reaching the stage calcination temperature), and then to raise the temperature again, thereby improving the calcination effect. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present application;

[0031] Figure 2 It is a sectional view schematic diagram of the present application;

[0032] Figure 3 It is a structural schematic diagram of the material transfer control assembly in the present application;

[0033] Figure 4 It is a structural schematic diagram of the inner mounting cylinder in the present application;

[0034] Figure 5 It is a structural schematic diagram of the material hole in the present application;

[0035] In the figure: 1, mounting frame; 11, furnace cylinder; 12, feeding frame; 13, material guide groove; 14, combustion machine; 15, heat exhaust pipe; 16, adapter pipe; 17, material storage seat; 18, hydraulic telescopic rod; 2, material box; 3, material transfer control assembly; 31, intermediate shaft; 32, connecting shaft seat; 33, inner cylinder tube; 34, air flow pipe; 35, driving motor; 4, inner mounting cylinder; 41, adapter rod; 42, inner cover plate; 43, inner connecting rod; 44, sealing bin; 45, ring plug; 46, outer shaft sleeve; 47, sleeve body; 48, material hole. DETAILED DESCRIPTION

[0036] Please refer to Figure 1 In an embodiment of the present application, a strontium hydroxide precipitate high-temperature calcination device comprises:

[0037] The mounting frame 1;

[0038] The furnace cylinder 11 is horizontally arranged on the mounting frame 1, and the furnace cylinder 11 is provided with a feeding port and a discharging port on both sides, respectively; it is usually made of high-temperature refractory material, and the inner diameter and length thereof are selected according to specific process requirements;

[0039] A feeding frame 12 is arranged on the upper end face of the mounting frame 1, one end of the feeding frame 12 is fixed to the furnace cylinder 11, and a material guide groove 13 is arranged on the feeding frame 12, the material guide groove 13 is communicated with the feeding port of the furnace cylinder 11; a spiral feeding frame can also be arranged in the material guide groove to improve the feeding efficiency;

[0040] Inner end covers are detachably and sealingly arranged at both ends of the furnace cylinder 11;

[0041] A combustion machine 14 is arranged on the upper end face of the furnace cylinder 11, and the lower end of the combustion machine 14 is communicated with the furnace cylinder 11; that is, the heating system of the furnace cylinder, which needs to be closely matched with the furnace cylinder to ensure that the temperature is uniform and stable during calcination; the calcination temperature generally reaches 900-1200℃;

[0042] A heat removal pipe 15 is vertically connected to the furnace cylinder 11 away from the combustion machine 14;

[0043] A material rotating control assembly 3 is coaxially arranged in the furnace cylinder 11;

[0044] A material storage seat 17 is connected to the discharge port of the furnace cylinder 11 through an adjusting pipe; and

[0045] A material box 2 is arranged on one side of the mounting frame 1, one end of the material storage seat 17 is communicated with the material box 2, and a switching pipe 16 is further communicated with the material box 2, one end of the switching pipe 16 is communicated with the combustion machine 14 through a heat recovery pipe.

[0046] In this embodiment, one end of the furnace cylinder 11 is rotationally connected to the mounting frame 1, and a hydraulic telescopic rod 18 is arranged on the mounting frame 1, one end of the hydraulic telescopic rod 18 is communicated with the furnace cylinder 11, and the deflection angle of the furnace cylinder 11 is within the range of 25° to -25°, thereby assisting the feeding and discharging.

[0047] As a preferred embodiment, the material rotating control assembly 3 comprises:

[0048] An intermediate shaft 31 is rotationally arranged in the furnace cylinder 11;

[0049] A connecting shaft seat 32 is fixed in the furnace cylinder 11, an inner cylinder pipe 33 is coaxially rotationally arranged in the furnace cylinder 11, and one end of the intermediate shaft 31 is fixed to the inner cylinder pipe 33;

[0050] A driving motor 35 is arranged on the feeding frame 12, and the output end of the driving motor 35 is connected to the intermediate shaft 31 through a transmission chain; and

[0051] The inner installation cylinder 4 is coaxially arranged on the intermediate shaft 31 and located in the inner cylinder tube 33, wherein the end of the inner cylinder tube is communicated with the furnace cylinder feed port, and the connecting shaft seat is communicated with the furnace cylinder discharge port. The intermediate shaft can drive the inner cylinder tube to rotate synchronously under the action of rotation, so that the strontium hydroxide precipitation in the inner cylinder tube can be distributed in a main body distributed manner.

[0052] In the embodiment, the connecting shaft seat 32 is vertically provided with an airflow pipe 34, and the connecting shaft seat 32 is provided with an annular cavity, and a plurality of airflow holes are circumferentially distributed on the annular cavity. The airflow pipe can transport a nitrogen atmosphere or an inert atmosphere to avoid the oxidation of strontium at high temperature, thereby affecting the product quality.

[0053] In the embodiment, the inner installation cylinder 4 comprises:

[0054] The adapter rods 41 are circumferentially distributed, and one end of each adapter rod 41 is hingedly connected to the intermediate shaft 31.

[0055] The inner cover plate 42 is correspondingly distributed with the adapter rods 41, and one end of the adapter rod 41 is rotatably connected to the inner cover plate 42.

[0056] The outer shaft sleeve 46 is slidably sleeved on the intermediate shaft 31, and a plurality of inner connecting rods 43 are rotatably connected to the outer shaft sleeve 46. The inner connecting rods 43 are arranged in an X-shaped staggered manner with the adapter rods 41, and one end of the inner connecting rod 43 is hingedly connected to the inner cover plate 42.

[0057] The positioning seat is fixed on the feeding frame 12, and the sealing bin 44 is fixed on the positioning seat. The ring plug 45 is slidably arranged in the sealing bin 44.

[0058] The sleeve body 47 is rotatably sleeved on the outer shaft sleeve 46, and the ring plug 45 is fixed to the sleeve body 47 through a plurality of supporting rods. When the sealing bin is pushed to slide axially under the gas pressure, the sleeve body can be displaced along the intermediate shaft, so that the inner cover plate can be correspondingly adjusted in the radial direction and can be in contact with the inner wall of the inner cylinder tube.

[0059] In the embodiment, the plurality of inner cover plates 42 are lapped and matched with each other, so that the inner diameter of the inner installation cylinder 4 is adjusted in the range of 0.8m to 1.5m. The inner installation cylinder can cooperate with the deflection movement of the furnace cylinder to control the rolling of the strontium hydroxide precipitation into the inner installation cylinder. At this time, the inner installation cylinder temporarily bears the strontium hydroxide precipitation, so that it is separated from the inner cylinder tube, so as to avoid the excessive expansion and cold contraction of the strontium hydroxide precipitation caused by the rapid temperature rise when the temperature in the furnace cylinder rises. Especially, intermittent calcination of strontium hydroxide precipitation can be realized in use. When the furnace cylinder reaches the stage calcination temperature, the strontium hydroxide precipitation is separated from the inner cylinder tube to maintain constant temperature calcination.

[0060] As a preferred embodiment, the inner cover plate 42 is provided with a plurality of material holes 48, which can be closed by the adjacent inner cover plate 42, wherein when the inner cover plate is adjusted in the radial direction to make the inner mounting cylinder gradually expand outward, the material holes are in the state of through holes, and in the rotation driving of the intermediate shaft, the strontium hydroxide precipitate can be distributed and scattered through the material holes to achieve the effect of material falling.

[0061] Specifically, in use, the strontium hydroxide precipitate can enter the inner cylinder tube in the furnace cylinder through the guide chute, and at this time the furnace cylinder can be in an inclined state to assist feeding, and in calcination, the combustion machine continuously supplies heat by gas delivery, the inner cylinder tube body is heated, and the intermediate shaft can drive the inner cylinder tube to rotate synchronously with the inner mounting cylinder under the action of rotation, so that the strontium hydroxide precipitate in the inner cylinder tube can be distributed and scattered through the material holes, when the inner cylinder tube body reaches the first stage calcination temperature, the inner cover plate is adjusted in the radial direction and preferentially contacts the inner wall of the inner cylinder tube, at the same time, the furnace cylinder is adjusted to be inclined, so that the strontium hydroxide precipitate can enter the inner mounting cylinder from the end and be temporarily carried by the inner mounting cylinder (i.e. the inner mounting cylinder is first expanded and then reduced, and the material collecting range is wide), and then the temperature is kept constant; and subsequent second stage calcination, third stage calcination, etc. are carried out, so as to improve the calcination effect.

[0062] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for precipitating and high temperature calcining of strontium hydroxide, characterized in that: The utility model relates to a kind of rotary kiln, including: Mounting frame (1); Furnace cylinder (11) is laterally arranged on the mounting frame (1), and the both sides of the furnace cylinder (11) are respectively provided with feeding port and discharge port; Feeding frame (12) is arranged on the upper end surface side of the mounting frame (1), one end of the feeding frame (12) is fixed with the furnace cylinder (11), and the feeding frame (12) is provided with guide chute (13), and the guide chute (13) is communicated with the feeding port of furnace cylinder (11); The inner end cap is detachably sealed and installed at both ends of the furnace cylinder (11); Combustion machine (14) is installed on the upper end surface side of the furnace cylinder (11), and the lower end of the combustion machine (14) is communicated with the furnace cylinder (11); Heat removal pipe (15) is vertically connected on the side of the furnace cylinder (11) away from the combustion machine (14); Rotary material control assembly (3) is coaxially arranged in the furnace cylinder (11); Storage seat (17) is connected to the discharge port of the furnace cylinder (11) through adjusting pipe; Material box (2) is arranged on one side of mounting frame (1), one end of the storage seat (17) is communicated with the material box (2), and the material box (2) is also communicated with the adapter pipe (16), one end of the adapter pipe (16) is communicated with the combustion machine (14) through the regenerative pipe; The rotary material control assembly (3) comprises: Intermediate shaft (31) is rotatably arranged in the furnace cylinder (11); Connecting shaft seat (32) is fixed in the furnace cylinder (11), and the furnace cylinder (11) is coaxially rotatably provided with inner cylinder pipe (33), one end of the intermediate shaft (31) is fixed with the inner cylinder pipe (33); Driving motor (35) is installed on the feeding frame (12), and the output end of the driving motor (35) is connected and driven with the intermediate shaft (31) through transmission chain; Inner mounting cylinder (4) is coaxially arranged on the intermediate shaft (31) and located in the inner cylinder pipe (33); The inner mounting cylinder (4) comprises: Adapter rod (41) is circumferentially distributed, one end of each adapter rod (41) is hinged with the intermediate shaft (31); Inner cover plate (42) is distributed corresponding to the adapter rod (41), one end of the adapter rod (41) is rotatably connected with the inner cover plate (42); Outer shaft sleeve (46) is slidably sleeved on the intermediate shaft (31), a plurality of inner connecting rods (43) are rotatably connected on the outer shaft sleeve (46), the inner connecting rods (43) are staggered and arranged in X shape with the adapter rod (41), and one end of the inner connecting rod (43) is hinged with the inner cover plate (42); Positioning seat is fixed on the feeding frame (12), and sealing bin (44) is fixed on the positioning seat, and ring plug (45) is slidably arranged in the sealing bin (44); Sleeve body (47) is rotatably sleeved on the outer shaft sleeve (46), and the ring plug (45) is fixed with the sleeve body (47) through a plurality of supporting rods.

2. The device for precipitating and calcining strontium hydroxide at high temperature according to claim 1, characterized in that: One end of the furnace cylinder (11) is rotatably connected with the mounting frame (1), and a hydraulic telescopic rod (18) is arranged on the mounting frame (1), one end of the hydraulic telescopic rod (18) is connected with the furnace cylinder (11), and the deflection angle of the furnace cylinder (11) is in the range of -25° to 25°.

3. The device for precipitating and calcining strontium hydroxide at high temperature according to claim 1, characterized in that: A gas flow pipe (34) is vertically arranged on the connecting shaft seat (32), and an annular cavity is arranged in the connecting shaft seat (32), and a plurality of gas flow holes are circumferentially distributed on the annular cavity.

4. The device for precipitating and calcining strontium hydroxide at high temperature according to claim 1, characterized in that: A plurality of the inner cover plates (42) are mutually overlapped and matched, so that the inner diameter of the inner mounting cylinder (4) is adjusted in the range of 0.8m to 1.5m.

5. The device for precipitating and calcining strontium hydroxide at high temperature according to claim 1, characterized in that: A plurality of material holes (48) are arranged on the inner cover plates (42), and the material holes (48) can be blocked by adjacent inner cover plates (42).

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