Automatic mud cake falling device of filter press and working method thereof

Abstract

The application discloses a kind of automatic mud cake falling device of filter press and its working method, device is located on dewatering screen, device includes the fixed plate connected with the side plate of dewatering screen and a plurality of lever type vibration amplification devices installed on fixed plate, lever type vibration amplification device includes the support installed on ground and the support rod rotationally connected with support, the end of support rod towards dewatering screen is connected with fixed plate by spring, the end of support rod away from dewatering screen is connected with metal ball, metal ball is placed on the top of filter plate of filter press, support rod is divided into first force arm rod and second force arm rod by support, first force arm rod is arranged towards dewatering screen, second force arm rod is arranged away from dewatering screen, the length of first force arm rod is greater than the length of second force arm rod.The advantages of the present application are: by setting lever type vibration amplification device on dewatering screen, the filter plate can be knocked, not only can realize the automatic falling of mud cake, but also can carry out vibration reduction to dewatering screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter press mud cake falling device, in particular to a filter press mud cake automatic falling device and a working method thereof. BACKGROUND

[0002] After the filter press mud cake is formed, the mud cake between the two filter cloths is very sticky due to the ultra-fine particle powder soil layer condition, and is stuck on the filter cloth, so the mud cake is not easy to fall off. At present, two workers are generally used to separate the filter cloth with an iron rod (plate) at both ends, but the separation time is long, the workers are tired, and time is wasted.

[0003] Therefore, a filter press mud cake automatic falling device and a working method thereof are needed to solve the above problems. SUMMARY

[0004] The present application aims at the deficiencies of the prior art, and provides a filter press mud cake automatic falling device and a working method thereof. The lever type vibration amplification device is arranged on the dehydration screen to knock the filter plate, so that the mud cake can be automatically fallen off, and the vibration of the dehydration screen can be reduced.

[0005] The object of the present application is achieved by the following technical solutions:

[0006] A filter press mud cake automatic falling device is characterized in that: the device is arranged on a dehydration screen, and comprises a fixed plate connected with a side plate of the dehydration screen and a plurality of lever type vibration amplification devices mounted on the fixed plate. The lever type vibration amplification device comprises a support mounted on the ground and a support rod rotatably connected with the support. One end of the support rod towards the dehydration screen is connected with the fixed plate through a spring, and the other end of the support rod away from the dehydration screen is connected with a metal ball. The metal ball is placed on the top of a filter plate of a filter press. The support rod is divided into a first force arm rod and a second force arm rod by the support. The first force arm rod is arranged towards the dehydration screen, and the second force arm rod is arranged away from the dehydration screen. The length of the first force arm rod is greater than that of the second force arm rod.

[0007] The fixed plate is T-shaped, and an installation groove matched with the fixed plate is formed in the side plate of the dehydration screen.

[0008] The fixed plate is provided with two rows of bolt holes along the length direction of the vertical section thereof. The side plate of the dehydration screen is provided with bolt holes corresponding in number and position to the bolt holes on the vertical section of the fixed plate. The fixed plate and the side plate of the dehydration screen are fixed by the cooperation of the bolt holes on the vertical section of the fixed plate and the side plate of the dehydration screen.

[0009] The side plates of the dewatering screen are supported by the inclined rods on the fixed plate.

[0010] The support includes a fixed seat, a rotating shaft and a connecting rod, the connecting rod is fixed on the ground, the fixed seat is installed on the top of the connecting rod, the fixed seat and the rotating shaft are rotationally connected, and the rotating shaft is connected with the support rod.

[0011] Each of the lever type vibration amplification devices is provided with a first force arm rod and a plurality of second force arm rods.

[0012] A plurality of vibrators are arranged on the dewatering screen.

[0013] A working method of the automatic mud cake falling device of the filter press, characterized in that the working method comprises the following steps:

[0014] After the filter cake of the filter press is formed, the filter plates of the filter press are separated from each other, the metal ball of the lever type vibration amplification device is placed on the top of the filter plate, the vibrator on the dewatering screen is started, the vibration of the vibrator drives the lever type vibration amplification device to work, so that the metal ball repeatedly knocks the filter plate, and the automatic mud cake falling is realized.

[0015] Under the vibration of the vibrator, the spring is compressed, the metal ball moves upward by the lever principle, and is away from the top of the filter plate; the spring rebounds, the metal ball moves downward by the lever principle, and knocks the top of the filter plate; and the reciprocating knocking of the metal ball on the filter plate is realized.

[0016] The advantage of the present application is that the lever type vibration amplification device is arranged on the dewatering screen, the filter plate can be knocked, the automatic mud cake falling can be realized, and the vibration of the dewatering screen can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a fixed plate installation schematic diagram of the present application;

[0018] Fig. 2 It is a vertical sectional view of the automatic mud cake falling device of the filter press of the present application;

[0019] Fig. 3 It is a horizontal sectional view of the lever type vibration amplification device of the present application. EMBODIMENT

[0020] The features and other related features of the present application are further described in detail below by examples combined with the drawings, so as to facilitate the understanding of the same by the skilled in the art:

[0021] As Figs. 1-3As shown in the figure, the markings 1-14 represent: 1. Dewatering screen, 2. Side plate, 3. Fixed plate, 4. Spring, 5. Metal ball, 6. Filter plate, 7. First lever arm, 8. Second lever arm, 9. Bolt, 10. Inclined bar, 11. Fixed seat, 12. Rotating shaft, 13. Vibrator, and 14. Connecting rod.

[0022] Example: Figs. 1-3 As shown, this embodiment relates to an automatic filter press cake removal device, which is installed on a dewatering screen 1, and the dewatering screen 1 is equipped with two vibrators 13. The device includes a fixed plate 3 connected to the side plate 2 of the dewatering screen 1 and several lever-type vibration amplification devices mounted on the fixed plate 3. The fixed plate 3 is T-shaped, and the side plate 2 of the dewatering screen 1 has an installation groove that mates with the fixed plate 3. The fixed plate 3 can be inserted into the installation groove of the side plate 2 from both ends. The installation groove not only facilitates the installation of the fixed plate 3 but also limits its position. The fixed plate 3 has two rows of bolt holes along its vertical length. The side plate 2 of the dewatering screen 1 has bolt holes in the same number and position as the bolt holes in the vertical section of the fixed plate 3. The fixed plate 3 is fixed to the side plate 2 of the dewatering screen 1 by the engagement of bolts 9 with the bolt holes in the vertical section of the fixed plate 3 and the side plate 2 of the dewatering screen 1, ensuring the reliability of the connection between the fixed plate 3 and the side plate 2 of the dewatering screen 1. The side plate 2 of the dewatering screen 1 is supported by the fixed plate 3 by the diagonal rod 10, which further strengthens the connection between the fixed plate 3 and the side plate 2 of the dewatering screen 1.

[0023] like Figs. 1-3 As shown, the lever-type vibration amplification device includes a bracket installed on the ground and a support rod rotatably connected to the bracket. The bracket serves as the fulcrum (rotation point) of the support rod. The bracket includes a fixed seat 11, a rotating shaft 12, and a connecting rod 14. The connecting rod 14 is fixed to the ground, and the fixed seat 11 is installed on top of the connecting rod 14. The fixed seat 11 and the rotating shaft 12 are rotatably connected, and the rotating shaft 12 is connected to the support rod. The end of the support rod facing the dewatering screen 1 is connected to the fixed plate 3 via a spring 4. A metal ball 5 is connected to the end of the support rod facing away from the dewatering screen 1. The metal ball 5 is placed on top of the filter plate 6 of the filter press. The support rod is divided into a first lever arm 7 and a second lever arm 8 by the bracket. The first lever arm 7 faces the dewatering screen 1, and the second lever arm 8 faces away from the dewatering screen 1. The length of the first lever arm 7 is greater than the length of the second lever arm 8. By utilizing the lever principle, the vibration generated by the vibrator 13 is amplified so that the metal ball 5 strikes the top of the filter plate 6. In this embodiment, each lever-type vibration amplification device is equipped with a first lever arm 7 and several second lever arms 8, which can simultaneously strike multiple filter plates 6 to achieve rapid detachment of mud cake.

[0024] In the embodiment, under the vibration of the vibrator 13, the spring 4 is compressed, the metal ball 5 is moved upward by the lever principle, and is away from the top of the filter plate 6; the spring 4 is rebounded, the metal ball 5 is moved downward by the lever principle, and knocks the top of the filter plate 6; in this way, the metal ball 5 repeatedly knocks the filter plate 6. In actual work, the dewatering screen 1 usually needs to be damped when in use, so as to ensure the stability of the dewatering screen 1, but the vibration source in the embodiment is the vibrator 13 on the dewatering screen 1, so the dewatering screen 1 does not need to be damped alone.

[0025] As shown in Figs. 1-3 , the device also has the following working method:

[0026] After the filter press forms the filter cake, the filter plates 6 of the filter press are separated from each other, the metal ball 5 of the lever type vibration amplification device is placed on the top of the filter plate 6, the vibrator 13 on the dewatering screen 1 is started, the vibration of the vibrator 13 drives the lever type vibration amplification device to work, so that the metal ball 5 repeatedly knocks the filter plate 6, so as to realize the automatic falling of the filter cake.

[0027] The beneficial technical effect of the embodiment is that the lever type vibration amplification device is arranged on the dewatering screen, the filter plate can be knocked, the automatic falling of the filter cake can be realized, and the dewatering screen can be damped.

[0028] Although the above embodiments have been described in detail with reference to the drawings, those skilled in the art can recognize that various improvements and changes can be made to the present application without departing from the scope defined by the claims, and therefore detailed description is not given here.

Claims

1. A method for operating an automatic cake release device for a filter press, characterized in that: The device is arranged on a dewatering screen, and comprises a fixed plate connected with side plates of the dewatering screen and a plurality of lever type vibration amplification devices arranged on the fixed plate. The fixed plate is T-shaped, and the side plates of the dewatering screen are provided with an installation groove matched with the fixed plate. The support comprises a fixed base, a rotating shaft and a connecting rod. Each of the lever type vibration amplification devices is provided with one first force arm rod and a plurality of second force arm rods. The dewatering screen is provided with a plurality of vibrators. The working method of the device comprises the following steps: after a filter press forms a mud cake, the filter plates of the filter press are separated from each other, the metal balls of the lever type vibration amplification devices are placed on the top of the filter plates, the vibrators on the dewatering screen are started, the vibration of the vibrators drives the lever type vibration amplification devices to work, so that the metal balls repeatedly knock the filter plates, and the mud cake is automatically dropped. Under the vibration of the vibrators, the spring is compressed, the metal ball moves upward by the lever principle, and thus is away from the top of the filter plate; the spring rebounds, the metal ball moves downward by the lever principle, and thus knocks the top of the filter plate; and the above steps are repeated, so that the metal ball repeatedly knocks the filter plate.

2. The method of claim 1, wherein the method comprises: The side plates of the dewatering screen are supported on the fixed plate by inclined rods.

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