Phosphogypsum resource modification production line
The phosphogypsum resource-based modification production line, which uses non-contact detection and multiple tests, solves the problem of inaccurate control of reagent addition in existing technologies, and achieves efficient modification of phosphogypsum, meeting the requirements of optimal pH environment and high mixing rate.
Patent Information
- Application Number
- CN202520026567.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing phosphogypsum modification production lines cannot obtain characteristic values in real time and continuously, resulting in the inability to accurately control the amount of modifier added, failing to meet the requirements of optimal pH environment and mixing rate of over 95%, and making it difficult to maximize the efficacy of the modifier.
Using non-contact detection and multiple testing methods, the pH, soluble phosphorus, soluble fluorine, heavy metals and other characteristic indicators of phosphogypsum are detected in real time through raw material probe, primary mixing probe and secondary mixing probe. Combined with the control system and powder/liquid dosing system, the precise compatibility and dosing of the reagents are achieved, and the phosphogypsum is mixed in stages.
It enables continuous real-time monitoring of phosphogypsum and precise dosing of reagents, meets the optimal pH environment for modifying reagents, maximizes reagent efficacy, and achieves a mixing rate of over 95%.
Smart Images
Figure CN223818579U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to phosphogypsum resource modification production technical field especially relates to a phosphogypsum resource modification production line. BACKGROUND
[0002] Phosphogypsum is the phosphorus ore residue after the preparation of phosphoric acid, and the main components are calcium sulfate (CaSO4), attached water (H2O), water-soluble diphosphorus pentoxide (P2O5), water-soluble fluoride (F-) and water-soluble magnesium oxide (MgO) and the like. Before modification, phosphogypsum is listed as the second general industrial solid waste, and cannot be used as a resource. The modification of phosphogypsum mainly takes the characteristic values of pH, water-soluble phosphorus, water-soluble fluorine and heavy metals reaching the standard as the judgment standard.
[0003] Phosphogypsum has a large amount of storage and a large annual output. Only the industrialized production method can be used for large-scale modification, so as to match the scale demand of phosphogypsum resource application.
[0004] Before the application of the present application, the sand and stone mixing technology is used in the phosphogypsum modification production line. The characteristic value data of phosphogypsum cannot be obtained in real time and continuously during the modification process, so the addition amount of the modification reagent cannot be accurately controlled. Since the phosphogypsum is acidic, the existing production line cannot meet the best pH environment of the modification reagent, and the effect of the modification reagent cannot be maximally stimulated. In addition, the existing production line cannot meet the mixing uniformity rate requirement of more than 95% of the modification reagent. Utility model content
[0005] In order to overcome the shortcomings that the existing production line cannot meet the best pH environment of the modification reagent, cannot maximally stimulate the effect of the modification reagent, and cannot meet the mixing uniformity rate requirement of more than 95% of the modification reagent, the utility model provides a phosphogypsum resource modification production line.
[0006] The technical implementation scheme of the utility model discloses a phosphogypsum resource modification production line, which comprises a feeder and a control room, the feeder is provided with screening, scattering and crushing devices, a feeder belt conveyor is arranged below the feeder, the feeder belt conveyor is located below the weighing discharge port of the feeder, a primary mixing stirrer is arranged at the steep bank of the feeder belt conveyor, a raw material probe is arranged directly above the feeder belt conveyor, the raw material probe adopts a non-contact detection mode, a powder adding assembly is arranged on the outer side of the feeder belt conveyor, an intermediate belt conveyor is arranged on the side, away from the feeder belt conveyor, of the primary mixing stirrer, a secondary mixing stirrer is arranged on the side, away from the primary mixing stirrer, of the intermediate belt conveyor, the feeding end is located below the discharge port of the primary mixing stirrer, the discharge end of the intermediate belt conveyor is arranged above the feeding port of the secondary mixing stirrer, a primary mixing probe is installed directly above the intermediate belt conveyor, the primary mixing probe adopts a non-contact detection mode, and a control system is arranged in the control room.
[0007] Optionally, the powder adding assembly is provided with six groups, three of which are arranged on the outer side of the feeder belt conveyor, and the other three are arranged on the outer side of the intermediate belt conveyor.
[0008] Optionally, the powder adding assembly comprises a medicament bin, a spiral feeder is arranged below the medicament bin, a weighing feeder is arranged at the discharge port of the spiral feeder, and the weighing feeder is arranged above the feeder belt conveyor or the intermediate belt conveyor.
[0009] Optionally, the secondary mixing stirrer is further provided with a discharge belt conveyor, a secondary mixing probe is arranged above the discharge belt conveyor, the secondary mixing probe adopts a non-contact detection mode, a liquid medicine adding system is arranged on the outer side of the discharge belt conveyor, and the discharge port of the liquid medicine adding system is located directly above the discharge belt conveyor.
[0010] The utility model has the advantages of:
[0011] 1. The raw material probe adopts a non-contact detection mode, continuously and real-timely detects the pH, soluble phosphorus, soluble fluorine and heavy metal characteristic indexes of the phosphogypsum supported by the belt support of the feeder belt conveyor, the powder adding assembly is arranged on the outer side of the feeder belt conveyor, the control system processes data through a built-in algorithm, then issues a medicament adding and adding amount instruction to the powder adding assembly, each group of medicament bins, spiral feeders and weighing feeders that receive the medicament adding instruction perform medicament adding work, the weighing feeder is installed on the rack of the feeder belt conveyor, the medicament is continuously added to the continuously conveyed phosphogypsum on the feeder belt conveyor after being weighed and checked, and the medicament and the phosphogypsum enter the primary mixing stirrer together.
[0012] 2、The utility model discloses a primary mixing probe adopts non-contact detection mode, and continuously detects the pH, soluble phosphorus, soluble fluorine, heavy metal and other characteristic indexes of the phosphogypsum supported by the intermediate belt conveyor in real time. After the above-mentioned characteristic indexes are digitized, they are transmitted to the control system through communication, the control system processes the data through the built-in algorithm, and then issues the reagent adding and dosage instruction to the powder adding system, so that each group of reagent bins, the screw feeder and the weighing feeder that receive the reagent adding instruction perform the reagent adding work. The weighing feeder is installed on the rack of the intermediate belt conveyor. After the reagent is weighed and checked, it is continuously added to the phosphogypsum continuously conveyed on the intermediate belt conveyor, and then enters the secondary mixing blender together with the phosphogypsum to perform the primary mixing of the phosphogypsum.
[0013] 3、The utility model discloses a secondary mixing probe that adopts non-contact detection mode, and continuously detects the pH, soluble phosphorus, soluble fluorine, heavy metal and other characteristic indexes of the phosphogypsum supported by the discharge belt conveyor in real time. After the above-mentioned characteristic indexes are digitized, they are transmitted to the control box through communication, the control box processes the data through the built-in algorithm, and then issues the liquid medicine adding and dosage instruction to the liquid medicine adding system, so that each group of liquid medicine bins that receive the liquid medicine adding instruction perform the liquid medicine adding work. Each group of liquid medicine bins is provided with a water scale. After the liquid medicine is weighed and checked, it is continuously sprayed to the phosphogypsum continuously conveyed on the discharge belt conveyor, so that the phosphogypsum is fully treated.
[0014] 4、The utility model discloses a two-stage mixing, three-time detection and once liquid supplementing, so that the phosphogypsum is fully treated, the best pH environment of the modified reagent is met, the efficacy of the modified reagent is maximally stimulated, and the modified reagent reaches the mixing uniformity rate requirement of more than 95%. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the overall structure schematic view of the utility model;
[0016] Figure 2 It is the front view of the utility model;
[0017] Figure 3 It is the structure schematic view of the primary mixing blender and the secondary mixing blender in the utility model;
[0018] Figure 4 It is the structure schematic view of the liquid medicine adding system in the utility model;
[0019] Figure 5 It is the installation position drawing of the primary mixing probe in the utility model;
[0020] Figure 6 It is the structure schematic view of the powder adding assembly in the utility model;
[0021] Figure 7 It is the work flow chart of the utility model.
[0022] Meaning of reference signs in the figure: 1, feeding machine; 2, raw material probe; 3, feeding belt machine; 4, powder adding assembly; 401, medicament bin; 402, screw feeder; 403, weighing material drop device; 5, primary mixing stirrer; 6, intermediate belt machine; 7, secondary mixing stirrer; 8, liquid medicine adding system; 9, discharging belt machine; 10, control room; 11, primary mixing probe; 12, secondary mixing probe. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer orientation words appearing or about to appear in the text of the present application are based on the drawings of the present application, and are not specific limitations on the present application.
[0024] As Figures 1 to 7As shown, a phosphogypsum resource modification production line, including feeder 1 and control room 10, the feeder 1 is provided with screening, scattering, crushing device, the lower part of feeder 1 is provided with feeding belt conveyor 3, feeding belt conveyor 3 is located below the weighing discharge port of feeder 1, after phosphogypsum enters feeder 1, the agglomerates are crushed, and the loose state is weighed, and continuously and uniformly falls into feeding belt conveyor 3, the steep bank of feeding belt conveyor 3 is provided with primary mixing stirrer 5, the phosphogypsum is conveyed to the inlet of primary mixing stirrer 5 through the steep bank of feeding belt conveyor 3, the upper side of feeding belt conveyor 3 is provided with raw material probe 2, and the preferred installation position is after the weighing discharge port of feeder 1 and before the first weighing discharge port of powder adding assembly 4, the raw material probe 2 adopts a non-contact detection mode, continuously and real-timely detects the pH, soluble phosphorus, soluble fluorine, heavy metal and other characteristic indexes of the phosphogypsum supported by the belt support of feeding belt conveyor 3, the outer side of feeding belt conveyor 3 is provided with powder adding assembly 4, the control system processes data through the built-in algorithm, and then issues the medicine adding compatibility and adding amount instruction to powder adding assembly 4, each group of medicine bin 401, screw feeder 402 and weighing feeder 403 that obtain the medicine adding instruction implement the medicine adding work, the weighing feeder 403 is installed on the rack of feeding belt conveyor 3, and the medicine is continuously added to the continuously conveyed phosphogypsum of feeding belt conveyor 3 after being weighed and checked, and enters primary mixing stirrer 5 together with the phosphogypsum, the primary mixing stirrer 5 is a double-shaft horizontal high-power stirrer or a vertical planetary stirrer, the pH and characteristic value indexes of the phosphogypsum and the medicine after primary mixing reach the expectation, and the primary mixing stirrer 5 falls into intermediate belt conveyor 6, after primary mixing, the pH environment and characteristic value indexes of the phosphogypsum are particularly suitable for exerting the maximum medicine efficacy after subsequent medicine addition, the side, away from feeding belt conveyor 3, of primary mixing stirrer 5 is provided with intermediate belt conveyor 6, the side, away from primary mixing stirrer 5, of intermediate belt conveyor 6 is provided with secondary mixing stirrer 7, the inlet end is located below the discharge port of primary mixing stirrer 5, the discharge end of intermediate belt conveyor 6 is located above the inlet port of secondary mixing stirrer 7, the upper side of intermediate belt conveyor 6 is provided with primary mixing probe 11, and the preferred installation position is after the discharge port of primary mixing stirrer 5 and before the fourth weighing discharge port of powder adding assembly 4, the primary mixing probe 11 adopts a non-contact detection mode, continuously and real-timely detects the pH, soluble phosphorus, soluble fluorine, heavy metal and other characteristic indexes of the phosphogypsum supported by the belt support of intermediate belt conveyor 6, the inside of control room 10 is provided with a control system, the above-mentioned characteristic indexes are digitized and transmitted to the control system, the control system processes data through the built-in algorithm, and then issues the medicine adding compatibility and adding amount instruction to powder adding assembly 4, each group of medicine bin 401, screw feeder 402 and weighing feeder 403 that obtain the medicine adding instruction implement the medicine adding work, the weighing feeder 403 is installed on the rack of intermediate belt conveyor 6, and the medicine is continuously added to the continuously conveyed phosphogypsum of intermediate belt conveyor 6 after being weighed and checked, and enters secondary mixing stirrer 7 together with the phosphogypsum, the discharge port of secondary mixing stirrer 7 is provided with discharge belt conveyor 9,The second mixing stirrer 7 is a double-shaft horizontal high-power stirrer or a vertical planetary stirrer, and the phosphogypsum and the reagent after being mixed in the second mixing stirrer 7 falls into the discharge belt conveyor 9, the feeding end of the discharge belt conveyor 9 is located below the discharge port of the second mixing stirrer 7, the phosphogypsum is conveyed to a proper height through the discharge belt conveyor 9, other conveyors can be connected, a drop feeder can be connected, or direct dropping can be performed, the modified phosphogypsum is discharged, the second mixing probe 12 is arranged above the discharge belt conveyor 9, the second mixing probe 12 adopts a non-contact detection mode, the liquid medicine adding system 8 is arranged outside the discharge belt conveyor 9, the discharge port of the liquid medicine adding system 8 is located directly above the discharge belt conveyor 9, the second mixing probe 12 is preferably installed after the discharge port of the second mixing stirrer 7 and before the first liquid spraying head of the liquid medicine adding system 8, the second mixing probe 12 adopts a non-contact detection mode, continuously and real-timely detects the characteristic indexes such as pH, soluble phosphorus, soluble fluorine and heavy metals of the phosphogypsum supported by the belt support of the discharge belt conveyor 9. After the above characteristic indexes are digitized, the digitized indexes are transmitted to the control system through communication, the control system processes the data through a built-in algorithm, and then sends a liquid medicine adding and adding amount instruction to the liquid medicine adding system 8, each group of liquid medicine storages that receive the liquid medicine adding instruction perform liquid medicine adding work, each group of liquid medicine storages is provided with a water scale, and the liquid medicine is continuously sprayed on the continuously conveyed phosphogypsum on the discharge belt conveyor 9 after being weighed and checked, and the modified phosphogypsum is discharged through the discharge belt conveyor 9.
[0025] As shown in Figure 1 , Figure 2 and Figure 6 , the powder adding assembly 4 is provided with six groups, three groups of the powder adding assembly 4 are located outside the feeding belt conveyor 3, and the other three groups of the powder adding assembly 4 are located outside the intermediate belt conveyor 6, the powder adding assembly 4 comprises a reagent storage 401, a spiral feeder 402 is arranged below the reagent storage 401, a weighing drop feeder 403 is arranged at the discharge port of the spiral feeder 402, and the weighing drop feeder 403 is located above the feeding belt conveyor 3 or the intermediate belt conveyor 6.
[0026] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the person skilled in the art without departing from the purpose of the utility model.
Claims
1. A phosphogypsum resource utilization modification production line, comprising a feeder (1) and a control room (10), wherein the feeder (1) is equipped with a screening, dispersing and crushing device, a feed belt conveyor (3) is provided below the feeder (1), the feed belt conveyor (3) is located below the weighing outlet of the feeder (1), a primary mixing mixer (5) is provided at the steep section of the feed belt conveyor (3), a raw material probe (2) is provided directly above the feed belt conveyor (3), the raw material probe (2) adopts a non-contact detection method, and a powder feeding device is provided on the outside of the feed belt conveyor (3). The addition component (4) includes an intermediate belt conveyor (6) on the side of the primary mixing mixer (5) away from the feed belt conveyor (3), a secondary mixing mixer (7) on the side of the intermediate belt conveyor (6) away from the primary mixing mixer (5), the feed end being located below the discharge port of the primary mixing mixer (5), the discharge end of the intermediate belt conveyor (6) being located above the feed port of the secondary mixing mixer (7), a primary mixing probe (11) being installed directly above the intermediate belt conveyor (6), the primary mixing probe (11) being a non-contact detection method, and a control system being installed inside the control room (10).
2. A phosphogypsum resource utilization modification production line according to claim 1, characterized in that, The powder dosing assembly (4) is provided in six sets, of which three sets of the powder dosing assembly (4) are located outside the feed belt conveyor (3), and the other three sets of the powder dosing assembly (4) are located outside the intermediate belt conveyor (6).
3. A phosphogypsum resource utilization modification production line according to claim 2, characterized in that, The powder dosing assembly (4) includes a reagent bin (401), and a screw feeder (402) is provided below the reagent bin (401). A weighing feeder (403) is provided at the discharge port of the screw feeder (402), and the weighing feeder (403) is located above the feed belt conveyor (3) or the intermediate belt conveyor (6).
4. A phosphogypsum resource utilization modification production line according to claim 1, characterized in that, The discharge port of the two-mix mixer (7) is equipped with a discharge belt conveyor (9), and a two-mix probe (12) is provided above the discharge belt conveyor (9). The two-mix probe (12) adopts a non-contact detection method. A liquid dosing system (8) is provided on the outside of the discharge belt conveyor (9), and the discharge port of the liquid dosing system (8) is located directly above the discharge belt conveyor (9).