Buffer device for reverse blowing of filter press

Abstract

A buffer device for reverse blowing of a filter press comprises a communicating pipe, a main conical spacer sleeve and an auxiliary conical spacer sleeve, the main conical spacer sleeve and the auxiliary conical spacer sleeve are arranged up and down, an inlet of the communicating pipe is fixedly connected with an outlet of a return pipe of the filter press, the tip end of the main conical spacer sleeve is arranged upwards, and the tip end of the auxiliary conical spacer sleeve is arranged downwards. The large end of the auxiliary conical spacer sleeve extends into the main conical spacer sleeve, the large end of the auxiliary conical spacer sleeve is detachably connected with the interior of the main conical spacer sleeve, a plurality of discharging holes are formed in the surface of the auxiliary conical spacer sleeve, and the small end of the auxiliary conical spacer sleeve extends into an outlet of the communicating pipe and is fixedly connected with the outlet of the communicating pipe. According to the utility model, the impact of high-pressure air and residual materials on flotation concentrate pulp is effectively buffered, the sound of the high-pressure air is reduced, the splashing of slime water pulp in the feeding stirring barrel and the influence of the splashing on peripheral electrified equipment are avoided, the labor intensity of post operators for cleaning is reduced, and the normal operation of filter press equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter press reverse blowing buffering technical field, specifically buffer device for filter press reverse blowing. BACKGROUND

[0002] The float coal slurry is continuously transported into the filter plate cavity of the filter press by the slurry pump, and when the feeding pressure reaches 0.8Mpa, it indicates that the filter press is full of feeding, and the next blowing can be carried out. The coal cake in the cavity between the filter plates is extruded by using the high-pressure air extrusion principle, and then the coal cake is extruded again by using the pressure of the squeezing pump. Next, the feeding pipeline and the inside of the filter plate are cleaned and blown by high-pressure air for a set time to reduce the moisture content of the coal cake. After the cleaning and blowing are completed, the back blowing valve is opened, and the residual material and high-pressure air are discharged from the filter press, and then the next plate taking and unloading process is carried out. After the coal cake unloading is completed, the filter plate is compressed, and the working process of "compression-feeding-blowing-squeezing-unloading plate" is cycled. In the prior art, the return pipe of the filter press is connected to the feeding mixing barrel, and when the residual material and high-pressure air are discharged from the filter press during reverse blowing, the wind pressure can reach 30Mpa. At the moment when the high-pressure air and the material are blown back into the feeding mixing barrel through the return pipe, the existing float fine coal slurry in the feeding mixing barrel will splash out, and the sound is very loud, which will have a very negative impact on the surrounding equipment, environment, and operating personnel. SUMMARY

[0003] In order to solve the problem that the existing float fine coal slurry in the feeding mixing barrel splashes out due to the connection of the return pipe of the filter press to the feeding mixing barrel, the utility model provides a buffer device for filter press reverse blowing, which can prevent the existing float fine coal slurry in the feeding mixing barrel from splashing out during filter press reverse blowing.

[0004] The utility model discloses a buffer device for filter press reverse blowing, which comprises a communication pipe and an upper and lower main conical sleeve and a secondary conical sleeve, the inlet of the communication pipe is fixedly connected with the outlet of the return pipe of the filter press, the tip of the main conical sleeve is upwardly arranged, the tip of the secondary conical sleeve is downwardly arranged, the large end of the secondary conical sleeve extends into the interior of the main conical sleeve, and the large end of the secondary conical sleeve is detachably connected with the interior of the main conical sleeve, a plurality of discharge holes are formed in the surface of the secondary conical sleeve, the small end of the secondary conical sleeve extends into the outlet of the communication pipe, and the small end of the secondary conical sleeve is fixedly connected with the outlet of the communication pipe.

[0005] As a further optimization of the utility model, the large end of the main conical sleeve is fixedly connected with a blocking ring, and the blocking ring extends towards the communication pipe.

[0006] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the inner wall of the main conical baffle is detachably connected with a first mounting ring, the outlet of the communication pipe is detachably sleeved with a second mounting ring, and the first mounting ring and the second mounting ring are connected through a plurality of main connecting plates.

[0007] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the main conical baffle and the first mounting ring are connected through first bolts, and the second mounting ring and the communication pipe are connected through fastening bolts.

[0008] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the second mounting ring is fixedly provided with annular flow guide plates, the flow guide plates are inclined to the inlet of the communication pipe, a protection space is formed below the flow guide plates, and the fastening bolts are fixedly arranged in the protection space.

[0009] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the inner wall of the main conical baffle is detachably provided with a fixed ring, and the fixed ring is connected with the large end of the auxiliary conical baffle through a plurality of auxiliary connecting plates.

[0010] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the main conical baffle and the fixed ring are connected through second bolts.

[0011] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the communication pipe is U-shaped.

[0012] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the taper angle of the main conical baffle is 120°-140°.

[0013] As further optimization of the utility model discloses a buffer device for reverse air blowing of filter press: the taper angle of the auxiliary conical baffle is 60°-80°.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1) The utility model discloses a main conical baffle sleeve and vice conical baffle sleeve are set up up and down, the tip of main conical baffle sleeve sets up upwards, the tip of vice conical baffle sleeve sets up downwards, the big end of vice conical baffle sleeve is inserted into the inside of main conical baffle sleeve, and the big end of vice conical baffle sleeve is detachably connected with the inside of main conical baffle sleeve, a plurality of discharge holes are seted up on the surface of vice conical baffle sleeve, the small end of vice conical baffle sleeve is inserted into the outlet of the communicating pipe, and the small end of vice conical baffle sleeve is fixedly connected with the outlet of the communicating pipe, when the filter press is reversed and is blown, the residual material and high pressure air are entered into the communicating pipe through the outlet of the backflow pipe of the filter press, then are dispersed through a plurality of discharge holes on vice conical baffle sleeve, high pressure air is discharged to the outside, and the residual material contacts the inner wall of main conical baffle sleeve and directly falls into the feeding stirring barrel under the action of gravity, or slides along the inner wall of main conical baffle sleeve and falls into the feeding stirring barrel, effectively buffer the impact of high pressure air and residual material on the floating concentrate pulp, and reduce the sound of high pressure air, avoid the spatter of coal slime water pulp in the feeding stirring barrel and the influence of the spatter on the surrounding live equipment, reduce the labor intensity of post operating personnel cleaning, and ensure the normal operation of the filter press equipment.

[0016] 2) The utility model discloses a further enhance the main conical baffle sleeve blocking residual material spatter through setting the baffle ring. ACCURACY

[0017] Fig. 1 It is the structure schematic diagram of the utility model;

[0018] Fig. 2 It is the local section view of the utility model;

[0019] Fig. 3 It is the assembly schematic diagram of the utility model;

[0020] Mark in drawing: 1, main conical baffle sleeve, 101, main connecting plate, 102, baffle ring, 103, first installation ring, 2, vice conical baffle sleeve, 201, discharge hole, 202, vice connecting plate, 203, fixed ring, 3, communicating pipe, 301, second installation ring, 302, fastening bolt, 303, flow guide plate, 4, backflow pipe. SPECIFIC IMPLEMENTATION

[0021] The utility model discloses the technical scheme of making further detailed below combining specific embodiment, the part that the utility model discloses the following each embodiment has not been recorded and disclosed in detail, all should be understood as the prior art that the person skilled in the art knows or should know, for example the model of filter press and how filter press reverses and blows.

[0022] Embodiment 1

[0023] A kind of buffer device for the reverse blowing of filter press, as shown in Figs. 1-3As shown, the device comprises the communication pipe 3 and the main and auxiliary conical blocking sleeves 1 and 2 arranged vertically, the inner diameter of the communication pipe 3 is 190-210 mm, preferably 200 mm, the bending angle of the communication pipe 3 is 90°, the taper angle of the main conical blocking sleeve 1 is 120-140°, preferably 130°, the diameter of the large end of the main conical blocking sleeve 1 is 750-850 mm, preferably 800 mm, the taper angle of the auxiliary conical blocking sleeve 2 is 60-80°, preferably 70°, and the diameter of the large end of the auxiliary conical blocking sleeve 2 is 300-350 mm, preferably 350 mm.

[0024] The inlet of the communication pipe 3 is fixedly connected with the outlet of the backflow pipe 4 of the filter press, the tip of the main conical blocking sleeve 1 is arranged upward, the tip of the auxiliary conical blocking sleeve 2 is arranged downward, the large end of the auxiliary conical blocking sleeve 2 extends into the interior of the main conical blocking sleeve 1 and is detachably connected with the interior of the main conical blocking sleeve 1, a plurality of discharge holes 201 are arranged on the surface of the auxiliary conical blocking sleeve 2, the small end of the auxiliary conical blocking sleeve 2 extends into the outlet of the communication pipe 3 and is fixedly connected with the outlet of the communication pipe 3, the high-pressure air and the residual material from the filter press directly act on the auxiliary conical blocking sleeve 2, and the small end of the auxiliary conical blocking sleeve 2 and the outlet of the communication pipe 3 can be fixed by welding.

[0025] When the filter press is reversely blown, the residual material and the high-pressure air enter the communication pipe 3 through the outlet of the backflow pipe 4 of the filter press, are then dispersed through the plurality of discharge holes of the auxiliary conical blocking sleeve 2, the high-pressure air is discharged to the outside, and the residual material contacts the inner wall of the main conical blocking sleeve 1 and then directly falls into the feeding stirring barrel under the action of gravity or slides along the inner wall of the main conical blocking sleeve 1 to the feeding stirring barrel, thereby effectively buffering the impact of the high-pressure air and the residual material on the floating concentrate slurry, reducing the sound of the high-pressure air, avoiding the splashing of the coal slurry in the feeding stirring barrel and the influence of the splashing on the surrounding electrified equipment, reducing the labor intensity of the post operating personnel in cleaning, and ensuring the normal operation of the filter press.

[0026] The above is the basic implementation mode of the present application, which can be further improved, optimized and limited on the basis of the above, thereby obtaining the following embodiments:

[0027] Embodiment 2

[0028] The present embodiment is an improved scheme based on the embodiment 1, and the main structure is the same as that of the embodiment 1, and the improvement lies in that the large end of the main conical blocking sleeve 1 is fixedly connected with a blocking ring 102 which extends toward the communication pipe 3, thereby further strengthening the blocking of the main conical blocking sleeve 1 to the residual material.

[0029] Embodiment 3

[0030] This embodiment is an improved scheme based on embodiment 1, and the main structure is the same as that of embodiment 1. The improvement lies in that: in order to facilitate the replacement of some damaged parts, the inner wall of the main conical baffle 1 is detachably connected with a first mounting ring 103, and the main conical baffle 1 and the first mounting ring 103 are connected through first bolts; the outlet of the communication pipe 3 is detachably sleeved with a second mounting ring 301, and the first mounting ring 103 and the second mounting ring 301 are connected through a plurality of main connecting plates 101, and the second mounting ring 301 and the communication pipe 3 are connected through a fastening bolt 302. The inner wall of the main conical baffle 1 is detachably provided with a fixing ring 203, the fixing ring 203 and the large end of the auxiliary conical baffle 2 are connected through a plurality of auxiliary connecting plates 202, and the main conical baffle 1 and the fixing ring 203 are connected through second bolts.

[0031] During assembly, the fixing ring 203 is connected with the main conical baffle 1 through the second bolts, the first mounting ring 103 is connected with the main conical baffle 1 through the first bolts, and the position of the fixing ring 203 is higher than that of the first mounting ring 103; then the second mounting ring 301 is sleeved on the outlet of the communication pipe 3, and the two are connected through the fastening bolt 302; then the small end of the auxiliary conical baffle 2 is welded on the outlet of the communication pipe 3; at this time, the fixing ring 203, the first mounting ring 103 and the main conical baffle 1 are fixed together to form a complete structure, and the second mounting ring 301, the auxiliary conical baffle 2 and the communication pipe 3 are fixed together to form a complete structure; the auxiliary conical baffle 2 is inserted into the inside of the main conical baffle 1, both ends of all the main connecting plates 101 are welded with the first mounting ring 103 and the second mounting ring 301 respectively, and both ends of all the auxiliary connecting plates 202 are welded with the fixing ring 203 and the small end of the auxiliary conical baffle 2 respectively. When disassembly is needed, all the first bolts, second bolts and fastening bolts 302 are unscrewed, and then replacement can be carried out. However, the auxiliary conical baffle 2 and the communication pipe 3 are welded together, and some additional means are needed for disassembly. The disassembly method is a conventional prior art in the field, and will not be described in detail here.

[0032] Embodiment 4

[0033] This embodiment is an improved scheme based on embodiment 3, and the main structure is the same as that of embodiment 3. The improvement lies in that: in order to avoid the loss of function of the fastening bolt 302 due to rust corrosion and other factors, a ring-shaped flow guide plate 303 is fixedly arranged on the second mounting ring 301, the flow guide plate 303 is inclined toward the inlet of the communication pipe 3, a protection space is formed below the flow guide plate 303, and the fastening bolt 302 is fixedly arranged in the protection space. The falling residual materials will not directly hit the fastening bolt 302, but will partially fall on the flow guide plate 303 and slide into the feeding and stirring barrel.

[0034] Embodiment 5

[0035] The embodiment is an improved scheme based on the embodiment 1, and the main structure is same with the embodiment 1, and the improvement lies in that the communicating pipe 3 is U-shaped, the communicating pipe 3 is connected by two elbows, and the elbows are welded into an integrated structure. One end of one elbow is welded with the small end of the auxiliary conical baffle 2, and one end of the other elbow is welded with the return pipe 4.

[0036] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buffer device for reverse air blowing of a filter press, characterized in that: The utility model provides a filter press outlet pipe, which comprises a communication pipe (3) and upper and lower arranged main conical baffle (1) and vice conical baffle (2), the import of communication pipe (3) is fixedly connected with the export of the backflow pipe (4) of filter press, the tip of main conical baffle (1) is arranged upwards, the tip of vice conical baffle (2) is arranged downwards, the big end of vice conical baffle (2) is inserted into the inside of main conical baffle (1), and the big end of vice conical baffle (2) is detachably connected with the inside of main conical baffle (1), a plurality of discharge holes (201) are formed in the surface of vice conical baffle (2), the small end of vice conical baffle (2) is inserted into the export of communication pipe (3), and the small end of vice conical baffle (2) is fixedly connected with the export of communication pipe (3).

2. The buffer device for reverse air blowing of the filter press according to claim 1, characterized in that: The big end of the main conical baffle (1) is fixedly connected with a baffle ring (102), and the baffle ring (102) extends towards the communication pipe (3).

3. The buffer device for reverse air blow of the filter press according to claim 1, characterized in that: The inner wall of the main conical baffle (1) is detachably connected with a first mounting ring (103), and the export of the communication pipe (3) is detachably sleeved with a second mounting ring (301).

4. The buffer device for reverse air blowing of the filter press according to claim 3, characterized in that: The first mounting ring (103) and the second mounting ring (301) are connected through a plurality of main connecting plates (101).

5. The cushioning device for reverse air blow of the filter press according to claim 4, characterized in that: The main conical baffle (1) and the first mounting ring (103) are connected through first bolts, and the second mounting ring (301) and the communication pipe (3) are connected through fastening bolts (302).

6. The cushioning device for reverse air blow of the filter press according to claim 1, characterized in that: An annular flow guide plate (303) is fixedly arranged on the second mounting ring (301), the flow guide plate (303) is inclined towards the import of the communication pipe (3), a protection space is formed below the flow guide plate (303), and the fastening bolts (302) are fixedly arranged in the protection space.

7. The cushioning device for reverse air blow of the filter press according to claim 6, characterized in that: The inner wall of the main conical baffle (1) is detachably provided with a fixing ring (203), and the fixing ring (203) is connected with the big end of the vice conical baffle (2) through a plurality of vice connecting plates (202).

8. The cushioning device for reverse air blow of the filter press according to claim 1, characterized in that: The main conical baffle (1) and the fixing ring (203) are connected through second bolts.

9. The cushioning device for reverse air blow of the filter press according to claim 1, characterized in that: The communication pipe (3) is in a U shape.

10. The buffer device for reverse air blow of the filter press according to claim 1, characterized by: The taper angle of the main conical baffle (1) is 120°-140°. The taper angle of the vice conical baffle (2) is 60°-80°.

Images