Screening equipment for producing magnesium oxide

Abstract

The utility model provides sieving equipment for producing magnesium oxide, which belongs to the technical field of sieving and comprises a plurality of sieving frames, a plurality of pin shafts and a fixing structure. The bottom of each screen frame is connected with a screen mesh; the top and the bottom of each screen frame are provided with connecting protrusions, and each connecting protrusion is provided with a plurality of connecting holes. The plurality of pin shafts are in one-to-one correspondence with the connecting holes and are matched with the corresponding connecting holes in an inserting manner; a positioning component which is in contact with the outer side wall of one connecting bulge is fixedly arranged on the pin shaft, and a positioning sleeve is inserted and matched on the pin shaft; one end of the positioning sleeve is in contact with the outer side wall of the other connecting bulge; the fixing structure is arranged on the positioning sleeve; when the pin shaft is matched with the two adjacent connecting protrusions in an inserted mode, the positioning sleeve can be fixed to the pin shaft through the fixing structure. By means of the arrangement, the two connecting protrusions can be fixed through cooperation of the pin shaft and the positioning sleeve, and installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screening technical field, concretely relates to a sieve equipment for producing magnesium oxide. BACKGROUND

[0002] Magnesium oxide is an inorganic compound, insoluble in water and ethanol, but can form magnesium hydroxide in the presence of water, and magnesium hydroxide can form magnesium oxide by heating; in the process of producing magnesium oxide by using magnesium hydroxide, magnesium oxide solid is obtained by calcining magnesium hydroxide through a rotary calcining furnace; then the calcined magnesium oxide solid is crushed through a crushing device, and finally the crushed magnesium oxide is classified and screened.

[0003] In the prior art, magnesium oxide is screened through a rotary vibrating screen, which comprises a base, a screen body arranged on the base, and a vibrating mechanism arranged at the bottom of the screen body, and the screen body and the base are connected by a plurality of springs. After starting the vibrating mechanism, the screen body moves horizontally, vertically and obliquely; under the action of the vibration of the screen body, the multiple layers of screen meshes in the screen body can classify and screen the magnesium oxide material, and finally discharge from the discharge port of each layer; the screen body in the prior art comprises multiple frame bodies, and each frame body is provided with a screen mesh, and the mesh diameter of the screen mesh gradually decreases from top to bottom; the outer peripheral wall of each frame body is provided with a protruding flange outwardly at the position close to the top and the bottom, and the flanges on the adjacent frame bodies are in contact and fixed together by a clamp.

[0004] When replacing the screen mesh, the frame body and the screen mesh are replaced together; in the replacement process in the prior art, the clamp is removed by unscrewing the bolts on the clamp, the frame body is replaced, then the adjacent two frame bodies are connected by the clamp, and the bolts are tightened.

[0005] The above installation process requires that the clamp is sleeved on the flanges of the adjacent two frame bodies, and then fixed by the bolts; since the diameter of the frame body is large, the clamping process is laborious and the installation is inconvenient. UTILITY MODEL CONTENTS

[0006] The utility model embodiment provides a sieve equipment for producing magnesium oxide, which aims to solve the technical problem of inconvenient installation by the clamp in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0008] Provided is a sieve equipment for producing magnesium oxide, comprising:

[0009] A plurality of screen frames, each of which is connected with a screen mesh at the bottom; each of the screen frames is provided with a connecting protrusion at the top and the bottom, and each of the connecting protrusions is provided with a plurality of connecting holes;

[0010] A plurality of pins are in one-to-one correspondence with the connecting holes, and the pins are inserted into the corresponding connecting holes; wherein a positioning member is fixed on the pin and in contact with the outer sidewall of one of the connecting protrusions, and a positioning sleeve is inserted into the pin; one end of the positioning sleeve is in contact with the outer sidewall of another connecting protrusion;

[0011] A fixing structure is arranged on the positioning sleeve; when the pin is inserted into two adjacent connecting protrusions, the fixing structure can fix the positioning sleeve on the pin.

[0012] In a possible implementation, the outer peripheral wall of the positioning sleeve has a positioning hole, and the outer peripheral wall of the pin has an insertion hole aligned with the positioning hole; the fixing structure comprises:

[0013] A connecting plate is connected in the positioning hole;

[0014] An insertion plate is arranged in the positioning hole and inside the connecting plate; the insertion plate can be inserted into the insertion hole;

[0015] A guide shaft is fixed at one end on the insertion plate and extends out of the connecting plate at the other end;

[0016] An elastic member is arranged between the connecting plate and the insertion plate; the two ends of the elastic member are in abutment with the insertion plate and the connecting plate, respectively.

[0017] In a possible implementation, the outer peripheral wall of the connecting plate has external threads, the inner peripheral wall of the positioning hole has internal threads, and the connecting plate is screwed with the positioning hole.

[0018] In a possible implementation, a stop ring is fixed on the inner side of the positioning hole, and a stop plate is fixed on the insertion plate; the stop ring can be in contact with the stop plate to limit the maximum extension position of the insertion plate.

[0019] In a possible implementation, an eccentric shaft is connected to the outer side end of the connecting plate, and the eccentric shaft is perpendicular to the outer side end of the connecting plate; the eccentric shaft is used to drive the connecting plate to rotate.

[0020] In a possible implementation, the elastic member comprises a spring, and the spring is sleeved on the guide shaft.

[0021] In a possible implementation, the fixing structure further comprises:

[0022] An axial limiting member is connected to the guide shaft and located outside the connecting plate.

[0023] A limiting shell is connected to the outer side of the connecting plate; the axial limiting component can be inserted into the limiting shell to axially limit the guide shaft.

[0024] In a possible implementation, the axial limiting component has a slope along its rotation direction; when the axial limiting component is inserted into the limiting shell, the axial limiting component can be fixed in the limiting shell.

[0025] In a possible implementation, an outer end of the guide shaft is fixed with a handle.

[0026] Compared with the prior art, the sieve frame is stacked together when adjacent sieve frames are installed, the connecting holes on the two connecting protrusions are aligned, the pin shaft is inserted into the two connecting protrusions at this time, and the positioning sleeve is fixed on the penetrating end of the pin shaft through the fixing structure; through the cooperation of the positioning sleeve and the positioning component, the two connecting protrusions can be axially limited, so that the two sieve frames can be connected together; through the above setting, the two connecting protrusions can be fixed through the cooperation of the pin shaft and the positioning sleeve, and the installation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A schematic view of a sieve frame part of the screening equipment for producing magnesium oxide provided by the embodiment of the utility model;

[0028] Figure 2 A Figure 1 Enlarged schematic view of A part;

[0029] Figure 3 A Figure 2 Enlarged schematic view of B part;

[0030] Figure 4 A sectional view of a sieve frame part of the screening equipment for producing magnesium oxide provided by the embodiment of the utility model;

[0031] Figure 5 A Figure 4 Enlarged schematic view of C part;

[0032] Figure 6 A schematic view of a positioning sleeve part of the screening equipment for producing magnesium oxide provided by the embodiment of the utility model;

[0033] Figure 7 A Figure 6 Enlarged schematic view of D part;

[0034] Figure 8 A schematic view of a connecting plate part of the screening equipment for producing magnesium oxide provided by the embodiment of the utility model;

[0035] Figure 9 A schematic view of a blocking ring part of a screening equipment for producing magnesium oxide is provided for the embodiments of the present application.

[0036] Marked for explanation: 1, screen frame; 2, pin shaft; 21, positioning component; 22, positioning sleeve; 221, positioning hole; 222, blocking ring; 23, insertion hole; 3, fixed structure; 31, connecting plate; 311, eccentric shaft; 32, insertion plate; 321, blocking plate; 33, guide shaft; 331, handle; 34, elastic member; 35, axial limiting component; 351, inclined surface; 36, limiting housing; 4, screen mesh; 5, connecting protrusion. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0038] Please refer to Figures 1 to 9 , now a kind of screening equipment for producing magnesium oxide provided by the present application will be described. The screening equipment for producing magnesium oxide comprises a plurality of screen frames 1, a plurality of pin shafts 2 and a fixed structure 3; the bottom of each screen frame 1 is connected with a screen mesh 4; the top and bottom of each screen frame 1 are provided with a connecting protrusion 5, and a plurality of connecting holes are arranged on each connecting protrusion 5; the pin shafts 2 correspond to the connecting holes one by one, and the pin shafts 2 are inserted and matched with the corresponding connecting holes; wherein the pin shafts 2 are fixedly provided with a positioning component 21 in contact with the outer side wall of one of the connecting protrusions 5, and the pin shafts 2 are inserted and matched with a positioning sleeve 22; one end of the positioning sleeve 22 is in contact with the outer side wall of another connecting protrusion 5; the fixed structure 3 is arranged on the positioning sleeve 22; when the pin shafts 2 are inserted and matched with the adjacent two connecting protrusions 5, the fixed structure 3 can fix the positioning sleeve 22 on the pin shafts 2.

[0039] The screening equipment for producing magnesium oxide provided by the present application has the advantages that, compared with the prior art, when installing adjacent screen frames 1, the screen frames 1 are stacked together, and the connecting holes on the two connecting protrusions 5 are aligned, at this time the pin shafts 2 are inserted and matched with the two connecting protrusions 5, and the fixed structure 3 fixes the positioning sleeve 22 on the through end of the pin shafts 2; through the cooperation of the positioning sleeve 22 and the positioning component 21, the two connecting protrusions 5 can be axially limited, so that the two screen frames 1 can be connected together; through the above-mentioned arrangement, the two connecting protrusions 5 can be fixed through the cooperation of the pin shafts 2 and the positioning sleeve 22, which is convenient to install.

[0040] It should be noted that other structures of the screening device are prior art and will not be described here.

[0041] In some embodiments, as shown in Figures 1 to 9 the outer peripheral wall of the positioning sleeve 22 has a positioning hole 221, and the outer peripheral wall of the pin shaft 2 has a plug hole 23 aligned with the positioning hole 221; the fixing structure 3 includes a connecting plate 31, a plug plate 32, a guide shaft 33, and an elastic member 34; the connecting plate 31 is connected in the positioning hole 221; the plug plate 32 is arranged in the positioning hole 221 and located inside the connecting plate 31; the plug plate 32 can be plugged with the plug hole 23; one end of the guide shaft 33 is fixed on the plug plate 32, and the other end passes through the connecting plate 31; the elastic member 34 is arranged between the connecting plate 31 and the plug plate 32; the two ends of the elastic member 34 respectively abut against the plug plate 32 and the connecting plate 31.

[0042] It should be noted that when the pin shaft 2 is plugged with the connecting holes of the two connecting protrusions 5, the positioning sleeve 22 is sleeved on the pin shaft 2; after the positioning sleeve 22 is plugged in place, the plug plate 32 on the positioning sleeve 22 is plugged with the plug hole 23 on the pin shaft 2 under the elastic force of the elastic member 34, at this time the positioning sleeve 22 can be fixed on the pin shaft 2, and then the two connecting protrusions 5 are fixed together. Through the above arrangement of the present application, after the pin shaft 2 is plugged with the two connecting holes, the two connecting protrusions 5 can be fixed only by plugging the positioning sleeve 22 with the pin shaft 2, which is convenient to install.

[0043] For example, the outer peripheral wall of the connecting plate 31 has external threads, the inner peripheral wall of the positioning hole 221 has internal threads, and the connecting plate 31 is screwed with the positioning hole 221; by screwing the connecting plate 31 with the positioning hole 221, it is convenient to install the connecting plate 31 on the positioning hole 221, so it is convenient to disassemble and assemble the connecting plate 31; when the connecting plate 31 or the plug plate 32 is damaged, the connecting plate 31 or the plug plate 32 can be replaced without replacing the entire positioning sleeve 22, saving materials.

[0044] For example, the elastic member 34 includes a spring, and the spring is sleeved on the guide shaft 33; the two ends of the spring respectively abut against the plug plate 32 and the connecting plate 31; through the above arrangement, the plug plate 32 can be inserted into the plug hole 23 of the pin shaft 2 under the elastic force of the spring.

[0045] In some embodiments, as shown in Figures 1 to 9 the inner side of the positioning hole 221 is fixedly provided with a stop ring 222, and the plug plate 32 is fixedly provided with a stop plate 321; the stop ring 222 can contact the stop plate 321 to limit the maximum extension position of the plug plate 32.

[0046] It should be noted that by arranging the blocking ring 222 on the inner side of the positioning hole 221, the positioning hole 221 can be formed as a stepped hole, and the plug plate 32 can pass through the blocking ring 222; by cooperating the blocking plate 321 with the blocking plate 321, the plug plate 32 can be limited, so as to avoid the situation that the plug plate 32 slides out of the positioning hole 221.

[0047] In some embodiments, as shown in Figures 1 to 9 The outer side end of the connecting plate 31 is connected with an eccentric shaft 311, and the eccentric shaft 311 is perpendicular to the outer side end of the connecting plate 31; the eccentric shaft 311 is used to drive the connecting plate 31 to rotate.

[0048] It should be noted that the eccentric shaft 311 is fixed on the outer side end of the connecting plate 31, and by arranging the eccentric shaft 311 on the connecting plate 31, the operator can easily drive the connecting plate 31 to rotate by gripping the eccentric shaft 311 when installing the connecting plate 31, and then the connecting plate 31 can be easily installed in the connecting hole.

[0049] In some embodiments, as shown in Figures 1 to 9 The fixing structure 3 further comprises an axial limiting component 35 and a limiting shell 36; the axial limiting component 35 is connected to the guide shaft 33 and located on the outer side of the connecting plate 31; the limiting shell 36 is connected to the outer side of the connecting plate 31; the axial limiting component 35 can be inserted and cooperated with the limiting shell 36 to axially limit the guide shaft 33.

[0050] It should be noted that the guide shaft 33 is located at the center position of the connecting plate 31, and after the positioning sleeve 22 is installed in place, the plug plate 32 is inserted and cooperated with the insertion hole 23 of the pin shaft 2 under the elastic force of the elastic member 34; at this time, by rotating the guide shaft 33, the axial limiting component 35 is screwed into the limiting shell 36, so as to axially limit the guide shaft 33.

[0051] For example, the axial limiting component 35 is fixed with an elastic layer, and after the axial limiting component 35 is screwed into the limiting shell 36, the elastic layer can be elastically deformed, so as to abut against the inner circumferential wall of the limiting shell 36, thereby reducing the situation that the axial limiting component 35 is screwed out of the limiting shell 36.

[0052] In some embodiments, as shown in Figures 1 to 9 The axial limiting component 35 has a slope 351 along the rotation direction thereof; when the axial limiting component 35 is inserted and cooperated with the limiting shell 36, the axial limiting component 35 can be fixed in the limiting shell 36; the outer side end of the guide shaft 33 is fixed with a rotating handle 331.

[0053] It should be noted that by setting the inclined surface 351 on the axial limiting component 35, the axial limiting component 35 is facilitated to be screwed into the limiting shell 36; after the axial limiting component 35 is screwed into the shell, the elastic deformation of the elastic layer can limit the axial limiting component 35 in the limiting shell 36. By setting the rotating handle 331 on the outer side end of the guide shaft 33, the operator is facilitated to rotate the guide shaft 33, and then the axial limiting component 35 is facilitated to be screwed into the limiting shell 36.

[0054] For example, when disassembling, the guide shaft 33 is pulled outward, so that the plug plate 32 is separated from the insertion hole 23 on the pin shaft 2, at this time the operator can take out the positioning sleeve 22 from the pin shaft 2, then the operator can pull out the pin shaft 2 from the two connecting protrusions 5, and the disassembly process is completed; the above-mentioned disassembly process of the present application is simple, after the screen frame 1 is disassembled, the screen frame 1 is facilitated to be cleaned, thereby reducing the residues on the screen frame 1, and in the next screening, the residues mixed with magnesium oxide materials can be reduced, thereby reducing the impurities in the magnesium oxide materials.

[0055] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sieving apparatus for producing magnesium oxide, characterized by, The utility model relates to a screen frame structure, including: a plurality of screen frames, the bottom of each screen frame is connected with a screen cloth, the top and bottom of each screen frame are provided with connecting protrusions, and a plurality of connecting holes are arranged on each connecting protrusion; a plurality of pins, corresponding to the connecting holes, the pins are inserted into the connecting holes, the pins are provided with positioning components in contact with the outer sidewalls of one of the connecting protrusions, and positioning sleeves are inserted into the pins; one end of the positioning sleeves is in contact with the outer sidewalls of another connecting protrusion; a fixing structure is arranged on the positioning sleeves, and when the pins are inserted into the adjacent two connecting protrusions, the fixing structure can fix the positioning sleeves on the pins.

2. A sieving apparatus for producing magnesium oxide according to claim 1, wherein The outer circumferential wall of the positioning sleeve is provided with a positioning hole, the outer circumferential wall of the pin is provided with an insertion hole aligned with the positioning hole, and the fixing structure includes: a connecting plate connected in the positioning hole; an insertion plate arranged in the positioning hole and located in the connecting plate; the insertion plate can be inserted into the insertion hole; a guide shaft fixed at one end of the insertion plate and extending out of the connecting plate at the other end; an elastic member arranged between the connecting plate and the insertion plate; the two ends of the elastic member are in contact with the insertion plate and the connecting plate, respectively.

3. A sieving apparatus for producing magnesium oxide as claimed in claim 2, wherein, The outer circumferential wall of the connecting plate is provided with external threads, the inner circumferential wall of the positioning hole is provided with internal threads, and the connecting plate is screwed with the positioning hole.

4. The sieving apparatus for producing magnesium oxide according to claim 2, wherein The inner side of the positioning hole is fixedly provided with a stop ring, and the insertion plate is fixedly provided with a stop plate; the stop ring can be in contact with the stop plate to limit the maximum extension position of the insertion plate.

5. The sieving apparatus for producing magnesium oxide according to claim 2, wherein The outer side end of the connecting plate is connected with an eccentric shaft, and the eccentric shaft is perpendicular to the outer side end of the connecting plate; the eccentric shaft is used for driving the connecting plate to rotate.

6. The sieving apparatus for producing magnesium oxide according to claim 2, wherein The elastic member includes a spring, and the spring is sleeved on the guide shaft.

7. The sieving apparatus for producing magnesium oxide according to claim 2, wherein The fixing structure further includes: an axial limiting component connected to the guide shaft and located on the outer side of the connecting plate; a limiting shell connected to the outer side of the connecting plate; the axial limiting component can be inserted into the limiting shell to limit the axial direction of the guide shaft.

8. A sieving apparatus for producing magnesium oxide according to claim 7, wherein The axial limiting component has an inclined surface along the rotating direction of the axial limiting component; when the axial limiting component is inserted into the limiting shell, the axial limiting component can be fixed in the limiting shell.

9. The sieving apparatus for producing magnesium oxide according to claim 7, wherein The outer side end of the guide shaft is fixedly provided with a handle.

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