Filter press filtrate monitoring device

Abstract

The utility model provides a filter press filtrate monitoring device, which relates to the technical field of filter presses and comprises a filtrate discharge pipe, a support frame fixedly connected to the outer upper end of the filtrate discharge pipe, an optical sensor fixedly mounted at the outer upper end of the filtrate discharge pipe, and a buzzer alarm fixedly mounted on the front side of the support frame. The inner wall of the supporting frame is fixedly sleeved with a sealing frame, the inner wall of one side of the supporting frame is fixedly connected with a locking insertion block, the upper surface of the supporting frame is provided with a rotary shading mechanism, light around the optical sensor is blocked through the rotary shading mechanism, and the optical sensor is prevented from receiving additional light signals. Therefore, the accuracy of the optical sensor on optical characteristics such as color and transparency of the filtrate is improved, an alarm can be given out in time when the filtrate has a black water phenomenon in the filtrate discharge pipe, a worker is reminded to respond, the workload is reduced, and the effect that stable operation of equipment can be guaranteed through timely discovery can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a filter press filtrate monitoring device. Background Technology

[0002] The formation of coal is a geological process that has taken hundreds of millions of years, beginning between the Paleozoic and Cenozoic eras. When large amounts of plant remains were deposited in oxygen-deficient environments in wetlands, river deltas, or at the bottom of lakes, they were subsequently compacted, dehydrated, decomposed by bacteria, and gradually transformed into the coal we see today through a process of increasing temperature and pressure. Raw coal contains a large number of impurities, such as rocks, soil, sulfur, and ash. These impurities not only reduce the purity and calorific value of the coal, but also produce harmful substances such as sulfur dioxide, nitrogen oxides, and particulate matter during combustion, which have a serious impact on the environment and human health. Therefore, these impurities are removed through coal washing processes. The washed coal has a high moisture content and needs to be dehydrated by a filter press.

[0003] When dewatering clean coal, existing filter presses sometimes experience damage to filter plates or filter cloths during the filtration process, leading to the production of black water in the filtrate. The current solution is to have patrol personnel conduct manual inspections during the operation of the filter press. However, manual inspections have significant limitations. They not only increase the workload of manual inspectors but also fail to detect black water in a timely manner, thus affecting the safe and stable operation of the equipment and the dewatering process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Currently, when dewatering clean coal, filter presses sometimes experience damage to filter plates or filter cloths during the filtration process, leading to the production of black water in the filtrate. The current solution is to have patrol personnel conduct manual inspections during the operation of the filter press. However, manual inspections have significant limitations. They not only increase the workload of manual inspectors but also fail to detect black water in a timely manner, thus affecting the safe and stable operation of the equipment and the dewatering process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A filter press filtrate monitoring device includes a filtrate discharge pipe, a support frame fixedly connected to the upper outer end of the filtrate discharge pipe, an optical sensor fixedly installed on the upper outer end of the filtrate discharge pipe, a buzzer alarm fixedly installed on the front of the support frame, a sealing frame fixedly sleeved on the inner wall of the support frame, and a locking block fixedly connected to one inner wall of the support frame.

[0007] The upper surface of the support frame is provided with a rotating light-shielding mechanism, which includes an outer light-shielding cover, an inner light-shielding cover, a fixed block, a rotating block, and a support rod. The rotating light-shielding mechanism enables rotating light blocking of the upper end of the optical sensor.

[0008] Preferably, one end of the fixing block is fixedly connected to one side surface of the support frame, the lower end of the support rod is fixedly connected to the upper end of the fixing block, and the inner wall of the rotating block is rotatably connected to the upper end of the support rod through a bearing.

[0009] Preferably, one end of each of the two rotating blocks is fixedly connected to one side surface of the outer light shield, the lower end of the outer light shield is in contact with the upper end of the support frame, and symmetrically distributed guide grooves are provided on the inner walls of both sides of the outer light shield.

[0010] Preferably, the inner wall of the guide groove is slidably connected with a guide slider, the opposing surfaces of the two guide sliders are respectively fixedly connected to the two side surfaces of the inner light shield, and the lower end of the inner light shield is in contact with the upper end of the sealing frame.

[0011] Preferably, a limiting rod is fixedly connected to the lower end of one of the guide sliders, and one end of the limiting rod is movably inserted into the inner wall of the locking block.

[0012] Preferably, the upper end of the outer light shield is rotatably connected to a screw via a bearing, and the upper end of the screw is fixedly connected to a drive handle.

[0013] Preferably, a threaded sleeve is threadedly connected to the outer surface of the lower end of the screw, and the lower end of the threaded sleeve is fixedly connected to the upper end of the inner light shield.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by rotating the light-blocking mechanism, the light around the optical sensor is blocked, preventing the optical sensor from receiving additional light signals. This improves the accuracy of the optical sensor in detecting the optical characteristics of the filtrate, such as color and transparency. It also allows the sensor to issue an alarm in time when black water appears in the filtrate discharge pipe, reminding staff to respond. This not only reduces the workload but also ensures the stable operation of the equipment through timely detection. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a filter press filtrate monitoring device provided by this utility model;

[0017] Figure 2 A three-dimensional view of the outer light shield structure of a filter press filtrate monitoring device provided by this utility model;

[0018] Figure 3 A perspective view of the support frame structure of a filter press filtrate monitoring device provided by this utility model;

[0019] Figure 4 A three-dimensional view of the inner light shield structure of a filter press filtrate monitoring device provided by this utility model.

[0020] Legend: 1. Filtrate discharge pipe; 2. Support frame; 3. Optical sensor; 4. Buzzer alarm; 5. Sealing frame; 6. Locking block; 7. Outer light shield; 71. Inner light shield; 72. Fixing block; 73. Rotating block; 74. Support rod; 75. Guide groove; 76. Guide slider; 77. Limiting rod; 78. Screw; 79. Drive handle; 710. Threaded sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example

[0026] like Figure 1-4 As shown, this utility model provides a technical solution: a filter press filtrate monitoring device, including a filtrate discharge pipe 1, a support frame 2 fixedly connected to the upper outer end of the filtrate discharge pipe 1, an optical sensor 3 fixedly installed on the upper outer end of the filtrate discharge pipe 1, a buzzer alarm 4 fixedly installed on the front of the support frame 2, a sealing frame 5 fixedly sleeved on the inner wall of the support frame 2, and a locking block 6 fixedly connected to the inner wall of one side of the support frame 2.

[0027] The upper surface of the support frame 2 is provided with a rotating light-blocking mechanism, which includes an outer light-blocking cover 7, an inner light-blocking cover 71, a fixed block 72, a rotating block 73 and a support rod 74. The rotating light-blocking mechanism enables the upper end of the optical sensor 3 to be rotated and blocked.

[0028] By spraying black matte paint on the inner walls of both the outer light shield 7 and the inner light shield 71, light reflection can be greatly reduced. The outer light shield 7 and the support frame 2 cooperate to initially shield the optical sensor 3, and then the inner light shield 71 and the sealing frame 5 cooperate to further shield the light, thereby further avoiding the refracted light generated through the gap between the outer light shield 7 and the support frame 2, thus improving the light shielding effect.

[0029] One end of the fixed block 72 is fixedly connected to one side surface of the support frame 2, the lower end of the support rod 74 is fixedly connected to the upper end of the fixed block 72, and the inner wall of the rotating block 73 is rotatably connected to the upper end of the support rod 74 through a bearing.

[0030] The outer light shield 7 is rotated and opened by the cooperation of the support rod 74 and the rotating block 73, which facilitates the calibration and maintenance of the internal optical sensor 3 and improves the operating efficiency.

[0031] One end of each of the two rotating blocks 73 is fixedly connected to one side surface of the outer light shield 7, and the lower end of the outer light shield 7 is in contact with the upper end of the support frame 2, thereby achieving the effect of initially shielding the internal optical sensor 3 and improving the accuracy of the monitoring results. The inner walls on both sides of the outer light shield 7 are provided with symmetrically distributed guide grooves 75.

[0032] The inner wall of the guide groove 75 is slidably connected with guide sliders 76. The opposing surfaces of the two guide sliders 76 are fixedly connected to the two side surfaces of the inner light shield 71. The lower end of the inner light shield 71 contacts the upper end of the sealing frame 5. The cooperation between the inner light shield 71 and the sealing frame 5 serves to block light from the gap between the outer light shield 7 and the support frame 2, thereby further improving the light shielding effect.

[0033] One of the guide sliders 76 has a fixed connection to a limiting rod 77 at its lower end. One end of the limiting rod 77 is movably inserted into the inner wall of the locking block 6. The cooperation between the limiting rod 77 and the locking block 6 serves to limit and fix the external light shield 7 and the support frame 2, preventing random rotation and improving the stability of the light shield.

[0034] The upper end of the outer light shield 7 is rotatably connected to a screw 78 via a bearing. The upper end of the screw 78 is fixedly connected to a drive handle 79. The drive handle 79 facilitates the operator to rotate the screw 78, which not only reduces the intensity of manual labor but also improves operating efficiency.

[0035] The lower end of the screw 78 is threaded with a threaded sleeve 710. The lower end of the threaded sleeve 710 is fixedly connected to the upper end of the inner light shield 71. The threaded sleeve 710 plays the role of cooperating to drive the inner light shield 71 to adjust up and down, thereby facilitating the rotation and opening and closing of the outer light shield 7 and the support frame 2.

[0036] By rotating the light-blocking mechanism, the light around the optical sensor 3 is blocked, preventing the optical sensor 3 from receiving additional light signals. This improves the accuracy of the optical sensor 3 in detecting the optical characteristics of the filtrate, such as color and transparency. When black water appears in the filtrate discharge pipe 1, an alarm can be issued in time to remind the staff to respond. This not only reduces the workload, but also ensures the stable operation of the equipment through timely detection.

[0037] The working process of this utility model:

[0038] Step 1: The optical sensor 3 is initially shielded from light by the cooperation of the outer light shield 7 and the support frame 2. Then, the inner light shield 71 is further shielded from light by the cooperation of the sealing frame 5, thereby further preventing the refracted light from being generated through the gap between the outer light shield 7 and the support frame 2. By installing the optical sensor 3 on the filtrate discharge pipe 1, it can directly contact the filtrate. The optical sensor 3 emits light of a specific wavelength. The clarity of the filtrate is judged by detecting the light intensity or the intensity of the scattered light passing through the filtrate. When the light intensity change exceeds the preset threshold, it is determined that black water has appeared. At this time, the buzzer alarm 4 sounds to prompt the inspection personnel to respond, thereby achieving the effect of real-time monitoring of the filtrate.

[0039] Step two: When the optical sensor 3 needs to be calibrated and maintained periodically, the screw 78 is rotated by the drive handle 79. The rotation of the screw 78 causes the inner light shield 71 to move upward through the cooperation of the guide groove 75 and the guide slider 76. At the same time, the movement of the guide slider 76 causes the limiting rod 77 to move upward and disengage from the limiting rod 77. When the inner light shield 71 moves away from the sealing frame 5 and rises into the outer light shield 7, the outer light shield 7 is rotated. The outer light shield 7 is opened by the cooperation of the support rod 74 and the rotating block 73, which facilitates the calibration and maintenance of the internal optical sensor 3.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter press filtrate monitoring device, comprising a filtrate discharge pipe (1), characterized in that: A support frame (2) is fixedly connected to the upper outer end of the filtrate discharge pipe (1), an optical sensor (3) is fixedly installed on the upper outer end of the filtrate discharge pipe (1), a buzzer alarm (4) is fixedly installed on the front of the support frame (2), a sealing frame (5) is fixedly sleeved on the inner wall of the support frame (2), and a locking plug (6) is fixedly connected to the inner wall of one side of the support frame (2). The upper surface of the support frame (2) is provided with a rotating light-blocking mechanism, which includes an outer light-blocking cover (7), an inner light-blocking cover (71), a fixing block (72), a rotating block (73), and a support rod (74). The rotating light-blocking mechanism enables the upper end of the optical sensor (3) to be rotated and blocked.

2. The filter press filtrate monitoring device according to claim 1, characterized in that: One end of the fixed block (72) is fixedly connected to one side surface of the support frame (2), the lower end of the support rod (74) is fixedly connected to the upper end of the fixed block (72), and the inner wall of the rotating block (73) is rotatably connected to the upper end of the support rod (74) through a bearing.

3. The filter press filtrate monitoring device according to claim 1, characterized in that: One end of each of the two rotating blocks (73) is fixedly connected to one side surface of the outer light shield (7), the lower end of the outer light shield (7) is in contact with the upper end of the support frame (2), and symmetrically distributed guide grooves (75) are provided on the inner walls of both sides of the outer light shield (7).

4. The filter press filtrate monitoring device according to claim 3, characterized in that: The inner wall of the guide groove (75) is slidably connected with guide sliders (76), and the opposing surfaces of the two guide sliders (76) are fixedly connected to the two side surfaces of the inner light shield (71), and the lower end of the inner light shield (71) contacts the upper end of the sealing frame (5).

5. A filter press filtrate monitoring device according to claim 4, characterized in that: One of the guide sliders (76) has a fixed connection at the lower end to a limiting rod (77), one end of which is movably inserted into the inner wall of the locking block (6).

6. The filter press filtrate monitoring device according to claim 1, characterized in that: The upper end of the outer light shield (7) is rotatably connected to a screw (78) via a bearing, and the upper end of the screw (78) is fixedly connected to a drive handle (79).

7. A filter press filtrate monitoring device according to claim 6, characterized in that: The lower end of the screw (78) is threadedly connected to a threaded sleeve (710), and the lower end of the threaded sleeve (710) is fixedly connected to the upper end of the inner light shield (71).

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